PESO - Cluster
Taken on my morning walk. Pentax K10D, DA* 50-135/2.8 @ 135mm ISO 200, 1/90 sec @ f/4.5 http://www.daytonphoto.com/PAW/bkd_5270.htm -- Bruce -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Genesis
Salgado's latest work: http://news.bbc.co.uk/1/shared/spl/hi/pop_ups/07/world_sebastiao_salga do0s_genesis/html/1.stm -- Regards, Bob -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
re: Re: DA 10-17 or DA 12-24?
Another thing I'd noticed is quite strong CA and I remember mentioned it on my in the field test pages in 2006: http://roman.blakout.net/?year=2006blog=20061215141746 Best regards, Roman. -- new photos once and again... roman.blakout.net http://roman.blakout.net -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
RE: Genesis
More here: http://www.hackelbury.co.uk/artists/salgado/genesis.html -- Bob -Original Message- From: Bob W [mailto:[EMAIL PROTECTED] Sent: 10 November 2007 08:33 To: 'Pentax-Discuss Mail List' Subject: Genesis Salgado's latest work: http://news.bbc.co.uk/1/shared/spl/hi/pop_ups/07/world_sebasti ao_salgado0s_genesis/html/1.stm -- Regards, Bob -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
RE: Question - Barrel Distortion vs Perspective Distortion?
So prospective distortion could occur even with a non-wide angle lens, couldn't it? Yes. And it does. But you don't notice it as much. So the second question is, why is perspective distortion much stronger and more usual with a wide angle than a normal focal length of 50mm and above? Nearer objects appear larger than further objects. To fill the frame with a nearer object you typically need a wider-angle lens. Using a tall building as an example, you are closer to the foot of the building than you are to the roof, therefore the foot will appear relatively larger than the roof. The straight lines which connect the foot and the roof must then converge at a greater angle than they would if you were further away. It's the same thing that happens when you photograph railway tracks. It's not a defect, it's a necessary fact of linear perspective. It really isn't anything to do with the lens, except that using a wide angle lens means you can fit more of a near object into the frame. Third question is, what causes barrel distortion? The curvature of the lens surface? There is a technical explanation of it here: http://www.vanwalree.com/optics/distortion.html I must admit I don't really understand it. I don't know what he means when he talks about introducing a stop in the system. I've always thought it was a problem of mapping a 3D world onto a 2D surface, rather like geographical projections, but I guess I'm wrong. -- Bob -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: 10 November 2007 07:42 To: pdml@pdml.net Subject: Re: Question - Barrel Distortion vs Perspective Distortion? In a message dated 11/9/2007 11:23:06 P.M. Pacific Standard Time, [EMAIL PROTECTED] writes: In a message dated 11/9/2007 11:14:38 P.M. Pacific Standard Time, [EMAIL PROTECTED] writes: And anyone who wants to expound more on the difference between barrel distortion and perspective distortion, too, feel free. = A couple more questions, though this is late and I need to think about it more. I might phrase it better tomorrow. :-) I can see how the sensor is a flat plane, and if I am shooting upward I am creating an angle -- the light is coming in at angle to that plane. If I have that right. Especially noticeable when shooting buildings that have straight lines. So prospective distortion could occur even with a non-wide angle lens, couldn't it? Like I think the leaning lamp post I got with the 50-200 at 63mm was actually perspective distortion because it was not perpendicular, but it was not curving. I was shooting upward a bit. But I will have to go back and look it may have been curving a bit too. So the second question is, why is perspective distortion much stronger and more usual with a wide angle than a normal focal length of 50mm and above? I think the barrel distortion I have noticed now and then is much more minor than the perspective distortion I have noticed. But maybe I should find a brick wall and do some tests. :-) Third question is, what causes barrel distortion? The curvature of the lens surface? Surprisingly enough none of this was ever covered in any photography class I have taken. f/stops, shutter speeds, etc., etc., but not distortion. Thanks, Marnie aka Doe ;-) - Warning: I am now filtering my email, so you may be censored. ** See what's new at http://www.aol.com -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
A question of extension (rings)
Hi! I have an extension ring of 12mm. But I need 14mm worth of extension. Does any one have an idea how I can achieve this? Anyone having a 14mm extension ring they would be willing to part with? Exchange it for 12mm one? Please refrain from the jokes of the very specific nature. Thank you. Boris -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
RE: PESO unusual raspberry
They are interesting, and it's a good project to pursue, but to me the pictures are compositionally unsatisfying. As they loaded I was expecting to see the whole raspberry and it took a while for me to realise that that was all I was going to get. They feel unresolved to me. -- Bob -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Igor Roshchin Sent: 10 November 2007 04:44 To: PDML@pdml.net Subject: PESO unusual raspberry I took some pictures of raspberries. (I actually spent several hours trying different light and lense combinations.) Well, these three pictures do not show just the raspberry, but the extra creatures growing on it as well. I was playing with the new D-FA 100/2.8 lens: http://www.komkon.org/~igor/PHOTOS/Raspberries/IMGP9428.jpg and then the same lens in combination with the 1.7x. http://www.komkon.org/~igor/PHOTOS/Raspberries/IMGP9503.jpg http://www.komkon.org/~igor/PHOTOS/Raspberries/IMGP9527.jpg The idea of using a TC for Macro imaging was picked from somebody's recent post here. I like it! I also tried to use a monstrous combination of 100/2.8 - SMC 2x - SMC 1.7x, but I didn't get any that I like. Also, I believe DOF was becoming too shallow, and when I tried to close down the aperture, I may have seen some diffraction showing up (although I am too lazy to estimate if I should see any noticeable diffraction at those values). If you are really interested to see some of those, take a look here: http://www.komkon.org/~igor/PHOTOS/Raspberries/100-2_0x-1_7x/ Disclaimer: No raspberries were harmed or eaten during the photo session. Igor -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
RE: PESO unusual raspberry
Just to add to this, I think the reason they feel unresolved is that the colour of the drupe is so much stronger and weightier than the colours of the fluffy bits that the eye is pulled away from the main subject and this leads me to expect an entire plump little raspberry. I think there are 2 things you could try to improve this. First is to get even closer and right into the fluffy bits, eliminating all but a tiny part of the succulent drupelets. The other is to show the whole fruit, but to position the top part in such a way that it dominates the composition. This is probably more difficult than the first because of the extra problem introduced by the strong colour. -- Bob -Original Message- From: Bob W [mailto:[EMAIL PROTECTED] Sent: 10 November 2007 09:01 To: 'Pentax-Discuss Mail List' Subject: RE: PESO unusual raspberry They are interesting, and it's a good project to pursue, but to me the pictures are compositionally unsatisfying. As they loaded I was expecting to see the whole raspberry and it took a while for me to realise that that was all I was going to get. They feel unresolved to me. -- Bob -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Igor Roshchin Sent: 10 November 2007 04:44 To: PDML@pdml.net Subject: PESO unusual raspberry I took some pictures of raspberries. (I actually spent several hours trying different light and lense combinations.) Well, these three pictures do not show just the raspberry, but the extra creatures growing on it as well. I was playing with the new D-FA 100/2.8 lens: http://www.komkon.org/~igor/PHOTOS/Raspberries/IMGP9428.jpg and then the same lens in combination with the 1.7x. http://www.komkon.org/~igor/PHOTOS/Raspberries/IMGP9503.jpg http://www.komkon.org/~igor/PHOTOS/Raspberries/IMGP9527.jpg The idea of using a TC for Macro imaging was picked from somebody's recent post here. I like it! I also tried to use a monstrous combination of 100/2.8 - SMC 2x - SMC 1.7x, but I didn't get any that I like. Also, I believe DOF was becoming too shallow, and when I tried to close down the aperture, I may have seen some diffraction showing up (although I am too lazy to estimate if I should see any noticeable diffraction at those values). If you are really interested to see some of those, take a look here: http://www.komkon.org/~igor/PHOTOS/Raspberries/100-2_0x-1_7x/ Disclaimer: No raspberries were harmed or eaten during the photo session. Igor -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Is SDM compatible with HSM
By intent techology is similar but I'm not sure whether HSM K-mount lense would work with in-lense AF mode on k-mount body like K10D or K100D Super. Your input, hopefully practical experience is greatly appreciated. In other words, dig your Sigma HSM k-mount lense and try on K10D body. thank you. -- new photos once and again... roman.blakout.net http://roman.blakout.net -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Is SDM compatible with HSM
Roman, Sigma does not include HSM in their K-mount lenses. The HSM K-mount lenses by Sigma do not exist. HTH. Boris Roman Melihhov wrote: By intent techology is similar but I'm not sure whether HSM K-mount lense would work with in-lense AF mode on k-mount body like K10D or K100D Super. Your input, hopefully practical experience is greatly appreciated. In other words, dig your Sigma HSM k-mount lense and try on K10D body. thank you. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Boris (PESO/PAW)
Hi Boris... This woke me up from my lurking slumber :-) #45 looks good, what I would have wanted to do would have taken it from an angle where the street lamp was clearly reflected in the puddle of water. That would have thrown the exposure off a bit but I was imagining what it might have looked like. #44 looks profoundly interesting...except I'm not too profound at the moment :-) Cheers! On Nov 10, 2007 2:29 AM, Boris Liberman [EMAIL PROTECTED] wrote: Hi! Today I actually shot the photograph for week #45 which I think is kind of a good thing. Week 44: http://not.contaxg.com/document.php?id=19502full=1 Week 45: http://not.contaxg.com/document.php?id=19503full=1 As usual, please have your brutal and honest say. Thanks. Boris -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- Bong Manayon http://www.bong.uni.cc -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: RE: Genesis
Bob W wrote: Salgado's latest work: http://news.bbc.co.uk/1/shared/spl/hi/pop_ups/07/world_sebasti ao_salgado0s_genesis/html/1.stm More here: http://www.hackelbury.co.uk/artists/salgado/genesis.html Fabulous stuff! I've seen a few of those shots before but they're well worth going over again. And again. Done with a Pentax 645, IIRC. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Impossible reflections -- photo-puzzle (raspberries again)
One berryin very bright light, plus primary reflection off front surface, plus seconary reflection off bottom surface of 'glass'. Regards, Bob S. On Nov 9, 2007 10:47 PM, Igor Roshchin [EMAIL PROTECTED] wrote: While sorting out photos of raspberries (see the other message I just sent) for a few moments, I was really puzzled by one of the photos. So, let me offer you this photo-puzzle. Here is a photo: http://www.komkon.org/~igor/PHOTOS/Mixed-2005-2007/IMGP9655-2.jpg I didn't do any pixel movement, cloning, adding or removing features. I only changed brightness, saturation, sharpness, and cropped it a bit (~5%). To make it absolutely clear, I didn't even remove any dust spots. How many berries are in the photo? (Where is(are) the berry(ies) and where is the reflection?) Igor -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: A question of extension (rings)
Boris, I suppose you can't get 2mm of distance out of the lenses focus mechanism... Regards, Bob S. On Nov 10, 2007 2:53 AM, Boris Liberman [EMAIL PROTECTED] wrote: Hi! I have an extension ring of 12mm. But I need 14mm worth of extension. Does any one have an idea how I can achieve this? Anyone having a 14mm extension ring they would be willing to part with? Exchange it for 12mm one? Please refrain from the jokes of the very specific nature. Thank you. Boris -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: A question of extension (rings)
No, that's the point. I am missing the proper focus range. Currently, I don't have an infinity focus... Boris Bob Sullivan wrote: Boris, I suppose you can't get 2mm of distance out of the lenses focus mechanism... Regards, Bob S. On Nov 10, 2007 2:53 AM, Boris Liberman [EMAIL PROTECTED] wrote: Hi! I have an extension ring of 12mm. But I need 14mm worth of extension. Does any one have an idea how I can achieve this? Anyone having a 14mm extension ring they would be willing to part with? Exchange it for 12mm one? Please refrain from the jokes of the very specific nature. Thank you. Boris -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
RE: First shots with the 67
On Nov 10, 2007 5:52 AM, Mark Roberts [EMAIL PROTECTED] wrote: Here's a sample shot. Another Tony Hallmark Greeting Card Sweet type shot from GFM (a couple of weeks prior to my trip with Doug). http://www.robertstech.com/temp/67-1.jpg I hate you. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO - The Clearing
Like it, Bruce. Layers of elements and color well seen. Jack --- Bruce Dayton [EMAIL PROTECTED] wrote: I have walked past this little clearing many, many times before. Only this morning was the light such that the scene just stood out. Pentax K10D, DA* 50-135/2.8 @ 108mm ISO 200, 1/60 sec @ f/8, Handheld http://www.daytonphoto.com/PAW/bkd_5280.htm -- Bruce -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: A PDML jubilant?
Hope you had a good one, Bill. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO unusual raspberry
Interesting. I prefer the first. Too much magnification in the other two. Paul On Nov 9, 2007, at 11:44 PM, Igor Roshchin wrote: I took some pictures of raspberries. (I actually spent several hours trying different light and lense combinations.) Well, these three pictures do not show just the raspberry, but the extra creatures growing on it as well. I was playing with the new D-FA 100/2.8 lens: http://www.komkon.org/~igor/PHOTOS/Raspberries/IMGP9428.jpg and then the same lens in combination with the 1.7x. http://www.komkon.org/~igor/PHOTOS/Raspberries/IMGP9503.jpg http://www.komkon.org/~igor/PHOTOS/Raspberries/IMGP9527.jpg The idea of using a TC for Macro imaging was picked from somebody's recent post here. I like it! I also tried to use a monstrous combination of 100/2.8 - SMC 2x - SMC 1.7x, but I didn't get any that I like. Also, I believe DOF was becoming too shallow, and when I tried to close down the aperture, I may have seen some diffraction showing up (although I am too lazy to estimate if I should see any noticeable diffraction at those values). If you are really interested to see some of those, take a look here: http://www.komkon.org/~igor/PHOTOS/Raspberries/100-2_0x-1_7x/ Disclaimer: No raspberries were harmed or eaten during the photo session. Igor -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO - Cluster
Nice. That lens seems to deliver excellent bokeh. Your renderings are superb. Paul On Nov 10, 2007, at 2:57 AM, Bruce Dayton wrote: Taken on my morning walk. Pentax K10D, DA* 50-135/2.8 @ 135mm ISO 200, 1/90 sec @ f/4.5 http://www.daytonphoto.com/PAW/bkd_5270.htm -- Bruce -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO - The Clearing
Beautiful light, rich color. A very pleasant scene. Paul On Nov 10, 2007, at 2:55 AM, Bruce Dayton wrote: I have walked past this little clearing many, many times before. Only this morning was the light such that the scene just stood out. Pentax K10D, DA* 50-135/2.8 @ 108mm ISO 200, 1/60 sec @ f/8, Handheld http://www.daytonphoto.com/PAW/bkd_5280.htm -- Bruce -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Question - Barrel Distortion vs Perspective Distortion?
In general, barrel distortion gives you a barrel shape, much like parenthesis facing each other. Perspective distortion gives you a pyramid shape. The outer verticals lean in. Perspective distortion is easy to correct in PhotoShop using Edit/Transform/Perspective. After correction, you have to crop, and you'll lose a bit of the frame. Frequently, I apply just a small amount of correction. You don't want perfectly aligned verticals for most shots. Barrel distortion can be corrected as well, but it's more difficult and usually not necessary. In PhotoShop Edit/Transform/Distort can help some, but there are third party lens correction tools that do a better job. However, I don't find that any of my lenses, including the 16-45 and 12-24, produce severe enough barrel distortion to require correction for normal use. I only remember using such a tool once. It was for a 12mm shot that included a vertical right near the edge of frame. A tiny bit of barrel distortion was visible after the perspective had been corrected. Rob told me how to fix it, and I did, but I don't remember the specific tool I used. Paul On Nov 9, 2007, at 11:19 PM, [EMAIL PROTECTED] wrote: I can't call this a stupid newbie question, because I am not a newbie anymore. ;-) Previously I have not shot much with wide angles. I used my Canon 17-40 in Yosemite and thought I noticed some trees leaning in slightly in some shots. But only slightly. I have noticed a lot of distortion using the 16-45 on the K100D. While sometimes I don't mind this, other times I have been annoyed because I wasn't taking it into account. I am also reassessing the lens. However, I realize I am not all that clear on the difference between barrel distortion and perspective distortion. I also realize that getting more in the frame than normal perspective would allow must mean something will happen. I am curious if there is a formula for when perspective distortion will not occur, or some focal length at which it will not occur? Would about 45mm be the cut off point -- it won't occur at 45mm? As for barrel distortion, it seems to be depend on the lens. It seems people use brick wall to test for barrel distortion. Is that true, some wide angles have barrel distortion and some do not? Or do they all to some degree? As you can tell, I am not quite sure how to phrase this question. Basically what I want to know is when I shoot with the 16-45 when I will get some distortion and when I am likely not to. So I can take it into account and plan for it. And use the 16mm end or zoom in a bit more to avoid it when I want to avoid it. And anyone who wants to expound more on the difference between barrel distortion and perspective distortion, too, feel free. I am pretty clueless on the whole topic. I think this is perspective distortion... (which I don't mind in this case, but this is not the strongest example, just one I have shown) http://members.aol.com/eactivist/PAWS/pages/temple2.htm I think this was may be barrel distortion. When I looked at it I found the lamp post leaning in, so I straighten the picture in Elements 5 with Transform/Skew. Hence the distortion isn't showing anymore, but it was there. http://members.aol.com/eactivist/PAWS/pages/bars.htm I can go back and look at exitf if needed, but I think the top was shot at 16mm and the lower one longer. TIA for anything you want to offer, Marnie aka Doe :-) - Warning: I am now filtering my email, so you may be censored. ** See what's new at http:// www.aol.com -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Impossible reflections -- photo-puzzle (raspberries again)
Two berries, end to end, on a stainless steel table. Paul On Nov 9, 2007, at 11:47 PM, Igor Roshchin wrote: While sorting out photos of raspberries (see the other message I just sent) for a few moments, I was really puzzled by one of the photos. So, let me offer you this photo-puzzle. Here is a photo: http://www.komkon.org/~igor/PHOTOS/Mixed-2005-2007/IMGP9655-2.jpg I didn't do any pixel movement, cloning, adding or removing features. I only changed brightness, saturation, sharpness, and cropped it a bit (~5%). To make it absolutely clear, I didn't even remove any dust spots. How many berries are in the photo? (Where is(are) the berry(ies) and where is the reflection?) Igor -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
PESO: RBAR Pano
G'day All, I took this last weekend: Small (1852x350 pixels, ~115kb) http://www.arach.net.au/~savage/Misc/Images/K10D/RBAR_002_sml.jpg Medium (3175x600 pixels, ~310kb) http://www.arach.net.au/~savage/Misc/Images/K10D/RBAR_002_med.jpg Large (4234x800 pixels, ~630kb) http://www.arach.net.au/~savage/Misc/Images/K10D/RBAR_002_lrg.jpg K10D, DA* 16-50mm f2.8 @ 50mm, 1/1250 @ f8, ISO 100, 10 frames stitched using PTGui, layers edited in PS CS2. A good example I think of how panoramas don't just have to be of static subjects. As always any all comments welcome. Cheers, Dave -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO: RBAR Pano
WOW! Both the shots and stitching very well done. Were you using S AF setting? Jack --- David Savage [EMAIL PROTECTED] wrote: G'day All, I took this last weekend: Small (1852x350 pixels, ~115kb) http://www.arach.net.au/~savage/Misc/Images/K10D/RBAR_002_sml.jpg Medium (3175x600 pixels, ~310kb) http://www.arach.net.au/~savage/Misc/Images/K10D/RBAR_002_med.jpg Large (4234x800 pixels, ~630kb) http://www.arach.net.au/~savage/Misc/Images/K10D/RBAR_002_lrg.jpg K10D, DA* 16-50mm f2.8 @ 50mm, 1/1250 @ f8, ISO 100, 10 frames stitched using PTGui, layers edited in PS CS2. A good example I think of how panoramas don't just have to be of static subjects. As always any all comments welcome. Cheers, Dave -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO: RBAR Pano
On Nov 10, 2007 11:04 PM, Jack Davis [EMAIL PROTECTED] wrote: WOW! Both the shots and stitching very well done. Thanks Jack. Were you using S AF setting? Yep. AF-S. Cheers, Dave --- David Savage [EMAIL PROTECTED] wrote: G'day All, I took this last weekend: Small (1852x350 pixels, ~115kb) http://www.arach.net.au/~savage/Misc/Images/K10D/RBAR_002_sml.jpg Medium (3175x600 pixels, ~310kb) http://www.arach.net.au/~savage/Misc/Images/K10D/RBAR_002_med.jpg Large (4234x800 pixels, ~630kb) http://www.arach.net.au/~savage/Misc/Images/K10D/RBAR_002_lrg.jpg K10D, DA* 16-50mm f2.8 @ 50mm, 1/1250 @ f8, ISO 100, 10 frames stitched using PTGui, layers edited in PS CS2. A good example I think of how panoramas don't just have to be of static subjects. As always any all comments welcome. Cheers, Dave -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: RBAR Pano
Good God David, That's effing awesome! Cory - Original Message - From: David Savage [EMAIL PROTECTED] To: pdml@pdml.net Sent: Saturday, November 10, 2007 8:51 AM Subject: PESO: RBAR Pano G'day All, I took this last weekend: Small (1852x350 pixels, ~115kb) http://www.arach.net.au/~savage/Misc/Images/K10D/RBAR_002_sml.jpg Medium (3175x600 pixels, ~310kb) http://www.arach.net.au/~savage/Misc/Images/K10D/RBAR_002_med.jpg Large (4234x800 pixels, ~630kb) http://www.arach.net.au/~savage/Misc/Images/K10D/RBAR_002_lrg.jpg K10D, DA* 16-50mm f2.8 @ 50mm, 1/1250 @ f8, ISO 100, 10 frames stitched using PTGui, layers edited in PS CS2. A good example I think of how panoramas don't just have to be of static subjects. As always any all comments welcome. Cheers, Dave -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.503 / Virus Database: 269.15.28/1122 - Release Date: 11/10/2007 10:41 AM -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO - Cluster
Yes indeed. Nice photo, Bruce. The DA*50-135 is a very good performer. There's a bit of corner/edge falloff when wide open at 135mm but I don't find it objectionable and it's easily correctable. I love the fact that it's both internal focus and zoom ... doesn't change length in use at all. The only negative aspect for me is that it's large and heavy .. I only carry such a big lens when I know I will want to be using them. In that respect it's much like the Olympus ZD 50-200 I was looking at yesterday for the L1: a marvelous performer but not a casual have it with me just in case size and weight. Godfrey On Nov 10, 2007, at 5:47 AM, Paul Stenquist wrote: Nice. That lens seems to deliver excellent bokeh. Your renderings are superb. Pentax K10D, DA* 50-135/2.8 @ 135mm ISO 200, 1/90 sec @ f/4.5 http://www.daytonphoto.com/PAW/bkd_5270.htm -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Impossible reflections -- photo-puzzle (raspberries again)
I think Bob has it right. On Nov 10, 2007, at 4:23 AM, Bob Sullivan wrote: One berryin very bright light, plus primary reflection off front surface, plus seconary reflection off bottom surface of 'glass'. Regards, Bob S. On Nov 9, 2007 10:47 PM, Igor Roshchin [EMAIL PROTECTED] wrote: While sorting out photos of raspberries (see the other message I just sent) for a few moments, I was really puzzled by one of the photos. So, let me offer you this photo-puzzle. Here is a photo: http://www.komkon.org/~igor/PHOTOS/Mixed-2005-2007/IMGP9655-2.jpg I didn't do any pixel movement, cloning, adding or removing features. I only changed brightness, saturation, sharpness, and cropped it a bit (~5%). To make it absolutely clear, I didn't even remove any dust spots. How many berries are in the photo? (Where is(are) the berry(ies) and where is the reflection?) -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Genesis
Stunning work. Thanks for pointing it out. Godfrey On Nov 10, 2007, at 12:36 AM, Bob W wrote: More here: http://www.hackelbury.co.uk/artists/salgado/genesis.html -- Bob -Original Message- From: Bob W [mailto:[EMAIL PROTECTED] Sent: 10 November 2007 08:33 To: 'Pentax-Discuss Mail List' Subject: Genesis Salgado's latest work: http://news.bbc.co.uk/1/shared/spl/hi/pop_ups/07/world_sebasti ao_salgado0s_genesis/html/1.stm -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO - The Clearing
I like the colors and the light, and it's a nice rendering. Something about the composition doesn't let my eye settle, as if it is slightly rotated one way or the other. Might be an optical delusion ... :-) Godfrey On Nov 10, 2007, at 2:55 AM, Bruce Dayton wrote: I have walked past this little clearing many, many times before. Only this morning was the light such that the scene just stood out. Pentax K10D, DA* 50-135/2.8 @ 108mm ISO 200, 1/60 sec @ f/8, Handheld http://www.daytonphoto.com/PAW/bkd_5280.htm -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO - Cluster
On Nov 10, 2007 11:34 PM, Godfrey DiGiorgi [EMAIL PROTECTED] wrote: Yes indeed. Nice photo, Bruce. The DA*50-135 is a very good performer. There's a bit of corner/edge falloff when wide open at 135mm but I don't find it objectionable and it's easily correctable. I love the fact that it's both internal focus and zoom ... doesn't change length in use at all. The only negative aspect for me is that it's large and heavy .. I only carry such a big lens when I know I will want to be using them. In that respect it's much like the Olympus ZD 50-200 I was looking at yesterday for the L1: a marvelous performer but not a casual have it with me just in case size and weight. Godders you need to get your hands on an FA* 80-200mm f2.8, and spend half an hour shooting it hand held. That experience would redefine heavy. I went into the local camera store today after work they happened to have on in stock. I had a bit of a play with it it feels like a feather in my hands, compared to the FA*.. It's light weight makes it somewhat attractive, but after reviewing the test shots I took out in the street, I'm not convinced it's the optical equal of it's FA* older brother. For now I'm giving it a miss. Bruce, of your 3 recent PESO'S this one is my fave. Nicely done. Cheers, Dave -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO: RBAR Pano
Very nice, Dave! That's one of the best panoramas I've seen in a while. :-) Godfrey On Nov 10, 2007, at 5:51 AM, David Savage wrote: Small (1852x350 pixels, ~115kb) http://www.arach.net.au/~savage/Misc/Images/K10D/RBAR_002_sml.jpg Medium (3175x600 pixels, ~310kb) http://www.arach.net.au/~savage/Misc/Images/K10D/RBAR_002_med.jpg Large (4234x800 pixels, ~630kb) http://www.arach.net.au/~savage/Misc/Images/K10D/RBAR_002_lrg.jpg K10D, DA* 16-50mm f2.8 @ 50mm, 1/1250 @ f8, ISO 100, 10 frames stitched using PTGui, layers edited in PS CS2. A good example I think of how panoramas don't just have to be of static subjects. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: RBAR Pano
On Nov 10, 2007 11:28 PM, cbwaters [EMAIL PROTECTED] wrote: Good God David, That's effing awesome! Cory Thanks mate. I was kinda' pleased with how it turned out :-) Cheers, Dave -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Question - Barrel Distortion vs Perspective Distortion?
In a message dated 11/10/2007 12:57:08 A.M. Pacific Standard Time, [EMAIL PROTECTED] writes: It really isn't anything to do with the lens, except that using a wide angle lens means you can fit more of a near object into the frame. == That makes sense. I admit from drawing I am familiar with most of this. Somehow, though, the perspective distortion I have gotten with the 16-45 has still surprised me. Third question is, what causes barrel distortion? The curvature of the lens surface? There is a technical explanation of it here: http://www.vanwalree.com/optics/distortion.html I must admit I don't really understand it. I don't know what he means when he talks about introducing a stop in the system. I've always thought it was a problem of mapping a 3D world onto a 2D surface, rather like geographical projections, but I guess I'm wrong. -- Bob = Thanks, Bob. :-) I guess next I need to figure out just how a wide angle gets more in the frame. How does a wide angle get more than what could be normally gotten by a normal lens into the frame into the frame? (Boy, I definitely could have phrased that better.) Think I read in my googling that it bends the light somehow. Marnie aka Doe :-) - Warning: I am now filtering my email, so you may be censored. ** See what's new at http://www.aol.com -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO - The Clearing
Like to add one more point. My tendency if to look for an anchor point, especially in an expanse such as this. In this case, the rock formation does it for me. I, also, feel the weight at both the top and bottom which further stabilize the scene. Jack --- Bruce Dayton [EMAIL PROTECTED] wrote: I have walked past this little clearing many, many times before. Only this morning was the light such that the scene just stood out. Pentax K10D, DA* 50-135/2.8 @ 108mm ISO 200, 1/60 sec @ f/8, Handheld http://www.daytonphoto.com/PAW/bkd_5280.htm -- Bruce -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Question - Barrel Distortion vs Perspective Distortion?
In a message dated 11/10/2007 5:46:44 A.M. Pacific Standard Time, [EMAIL PROTECTED] writes: In general, barrel distortion gives you a barrel shape, much like parenthesis facing each other. Perspective distortion gives you a pyramid shape. The outer verticals lean in. Perspective distortion is easy to correct in PhotoShop using Edit/Transform/Perspective. After correction, you have to crop, and you'll lose a bit of the frame. Frequently, I apply just a small amount of correction. You don't want perfectly aligned verticals for most shots. Barrel distortion can be corrected as well, but it's more difficult and usually not necessary. In PhotoShop Edit/Transform/Distort can help some, but there are third party lens correction tools that do a better job. However, I don't find that any of my lenses, including the 16-45 and 12-24, produce severe enough barrel distortion to require correction for normal use. I only remember using such a tool once. It was for a 12mm shot that included a vertical right near the edge of frame. A tiny bit of barrel distortion was visible after the perspective had been corrected. Rob told me how to fix it, and I did, but I don't remember the specific tool I used. Paul === Thanks, Paul. I can't think of any time I have really noticed barrel distortion in my shots, including the 16-45 So it's probably not a biggie. Though I may be looking a bit for it now. Marnie aka Doe :-) - Warning: I am now filtering my email, so you may be censored. ** See what's new at http://www.aol.com -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO - Fallen
Hi Bruce I love the difference in textures and patterns here :) rg2 On 11/10/07, Bruce Dayton [EMAIL PROTECTED] wrote: More evidence of the changing season. Pentax K10D, DA* 50-135/2.8 @ 135mm ISO 400, 1/125 sec @ f/11, handheld http://www.daytonphoto.com/PAW/bkd_5278.htm -- Bruce -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- the subject of a photograph is far less important than its composition -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: A PDML jubilant?
sweet, happy birthday :) rg2 On 11/10/07, Doug Brewer [EMAIL PROTECTED] wrote: Hope you had a good one, Bill. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- the subject of a photograph is far less important than its composition -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Impossible reflections -- photo-puzzle (raspberries again)
In a message dated 11/10/2007 4:27:26 A.M. Pacific Standard Time, [EMAIL PROTECTED] writes: One berryin very bright light, plus primary reflection off front surface, plus seconary reflection off bottom surface of 'glass'. Regards, Bob S. = I agree. I was trying to think how it had a double reflection and that would be how. You're a smarty, Bob. Marnie aka Doe :-) - Warning: I am now filtering my email, so you may be censored. ** See what's new at http://www.aol.com -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO unusual raspberry
I like the first and second ones especially, the cut off really adds interest for me as opposed to leaving it feeling unresolved like Bob said - maybe the effect of it loading bit by bit down the screen changed the way it was viewed, and I liked them more when I let it load for a moment and came back to them. That would be an interesting topic to pursue here - does the partial loading of a photo change the way people view a photograph online? Anyways, I like the photos and the idea you have going here :) rg2 On 11/10/07, Paul Stenquist [EMAIL PROTECTED] wrote: Interesting. I prefer the first. Too much magnification in the other two. Paul On Nov 9, 2007, at 11:44 PM, Igor Roshchin wrote: I took some pictures of raspberries. (I actually spent several hours trying different light and lense combinations.) Well, these three pictures do not show just the raspberry, but the extra creatures growing on it as well. I was playing with the new D-FA 100/2.8 lens: http://www.komkon.org/~igor/PHOTOS/Raspberries/IMGP9428.jpg and then the same lens in combination with the 1.7x. http://www.komkon.org/~igor/PHOTOS/Raspberries/IMGP9503.jpg http://www.komkon.org/~igor/PHOTOS/Raspberries/IMGP9527.jpg The idea of using a TC for Macro imaging was picked from somebody's recent post here. I like it! I also tried to use a monstrous combination of 100/2.8 - SMC 2x - SMC 1.7x, but I didn't get any that I like. Also, I believe DOF was becoming too shallow, and when I tried to close down the aperture, I may have seen some diffraction showing up (although I am too lazy to estimate if I should see any noticeable diffraction at those values). If you are really interested to see some of those, take a look here: http://www.komkon.org/~igor/PHOTOS/Raspberries/100-2_0x-1_7x/ Disclaimer: No raspberries were harmed or eaten during the photo session. Igor -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- the subject of a photograph is far less important than its composition -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO - The Clearing
In a message dated 11/10/2007 12:03:57 A.M. Pacific Standard Time, [EMAIL PROTECTED] writes: I have walked past this little clearing many, many times before. Only this morning was the light such that the scene just stood out. Pentax K10D, DA* 50-135/2.8 @ 108mm ISO 200, 1/60 sec @ f/8, Handheld http://www.daytonphoto.com/PAW/bkd_5280.htm -- Bruce It's pleasant, but somehow I feel it's not the best composition for that spot -- I think you can do better. Hesitated to say that. Marnie aka Doe :-) - Warning: I am now filtering my email, so you may be censored. ** See what's new at http://www.aol.com -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO - Fallen
In a message dated 11/9/2007 11:54:22 P.M. Pacific Standard Time, [EMAIL PROTECTED] writes: More evidence of the changing season. Pentax K10D, DA* 50-135/2.8 @ 135mm ISO 400, 1/125 sec @ f/11, handheld http://www.daytonphoto.com/PAW/bkd_5278.htm -- Bruce == I like the leaf, but too dead center for me. HTH, Marnie aka Doe :-) - Warning: I am now filtering my email, so you may be censored. ** See what's new at http://www.aol.com -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
GESO: Magnolia Gardens
Well, I finally got a few slides scanned from my Magnolia Gardens trip last month. The first seven are Velvia 50. Sadly, the scanner didn't seem to recognize my darker slides, which of course were a few of my favorites, and of course the scanner was all dusty. But, I'm glad to have gotten a few up to a gallery anyways, and hopefully in the future I can get a better scan on them. Enjoy, and thanks for looking at my first gallery! :) http://picasaweb.google.com/rg2pdml/Magnolia rg2 -- my wide angle lens is what I use so I don't have to step back to take the picture I'm going to crop anyways -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO - The Clearing
I like this picture, but I can't decide whether I should look at the rocks or the bright green grass at the bottom. Very nice light you grabbed :) rg2 On 11/10/07, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: In a message dated 11/10/2007 12:03:57 A.M. Pacific Standard Time, [EMAIL PROTECTED] writes: I have walked past this little clearing many, many times before. Only this morning was the light such that the scene just stood out. Pentax K10D, DA* 50-135/2.8 @ 108mm ISO 200, 1/60 sec @ f/8, Handheld http://www.daytonphoto.com/PAW/bkd_5280.htm -- Bruce It's pleasant, but somehow I feel it's not the best composition for that spot -- I think you can do better. Hesitated to say that. Marnie aka Doe :-) - Warning: I am now filtering my email, so you may be censored. ** See what's new at http://www.aol.com -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- the subject of a photograph is far less important than its composition -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO - Romantic II
I think the colors are great - and I think that the picture would look great with or without the people in it, whichever suits you best personally. rg2 On 11/8/07, Ken Waller [EMAIL PROTECTED] wrote: Goes either way for me. I've had critiques on similar images that the images needed a sense of scale. - Original Message - From: Rick Womer [EMAIL PROTECTED] Subject: Re: PESO - Romantic II I disagree; I think they add scale. --- Doug Franklin [EMAIL PROTECTED] wrote: [EMAIL PROTECTED] wrote: These guys came along hiking and ruined my shot. Placement isn't perfect but that is where they stopped, and I was focused on the tree and the hill. :-) http://members.aol.com/eactivist/PAWS/pages/romantic2.htm Pretty shot, but the hikers don't really play a role in it, to my eye. They're so small in the frame that they seem more like something that got in the way. -- Thanks, DougF (KG4LMZ) -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- the subject of a photograph is far less important than its composition -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO - Cluster
On Nov 10, 2007, at 6:52 AM, David Savage wrote: Godders you need to get your hands on an FA* 80-200mm f2.8, and spend half an hour shooting it hand held. That experience would redefine heavy. Having spent a bit of time with a Canon EF 70-200/2.8L IS, I think I know what heavy is. I can't imagine that the Pentax version of the same thing is much heavier. I chose the 70-200/4L instead. I hate lugging around such heavy gear unless absolutely necessary. Whether the FA* is a better performer than the DA* I couldn't say, but it's not the same focal length range either. I only rarely need/ want anything longer than 135mm and the 50-135 proves a better option for my use. I'm much more likely to carry the DA70 anyway, which is at the long end of what I normally want. ;-) Godfrey -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO: RBAR Pano
This is pretty cool. I am so used to seeing panos where the scene is just showing a wide expanse of a simple landscape - which usually includes part of the scene that are not very interesting. You have come up with a whole different presentation here. Bravo for the creativity and presentation! -- Bruce Saturday, November 10, 2007, 5:51:41 AM, you wrote: DS G'day All, DS I took this last weekend: DS Small (1852x350 pixels, ~115kb) DS http://www.arach.net.au/~savage/Misc/Images/K10D/RBAR_002_sml.jpg DS Medium (3175x600 pixels, ~310kb) DS http://www.arach.net.au/~savage/Misc/Images/K10D/RBAR_002_med.jpg DS Large (4234x800 pixels, ~630kb) DS http://www.arach.net.au/~savage/Misc/Images/K10D/RBAR_002_lrg.jpg DS K10D, DA* 16-50mm f2.8 @ 50mm, 1/1250 @ f8, ISO 100, 10 frames DS stitched using PTGui, layers edited in PS CS2. DS A good example I think of how panoramas don't just have to be of DS static subjects. DS As always any all comments welcome. DS Cheers, DS Dave -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Is SDM compatible with HSM
Roman Melihhov wrote: By intent techology is similar but I'm not sure whether HSM K-mount lense would work with in-lense AF mode on k-mount body like K10D or K100D Super. Your input, hopefully practical experience is greatly appreciated. In other words, dig your Sigma HSM k-mount lense and try on K10D body. thank you. When Sigma updates its K Mount lenses to HSM spec, it will be compatible with SDM. No Sigma K mount lens currently is HSM. -Adam -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: DA 10-17 or DA 12-24?
Roman Melihhov wrote: Another thing I'd noticed is quite strong CA and I remember mentioned it on my in the field test pages in 2006: http://roman.blakout.net/?year=2006blog=20061215141746 Best regards, Roman. Checked that shot, it looks a lot more like purple fringing, aka sensor bloom than CA to me. -Adam -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
RE: Question - Barrel Distortion vs Perspective Distortion?
Thanks, Bob. :-) I guess next I need to figure out just how a wide angle gets more in the frame. How does a wide angle get more than what could be normally gotten by a normal lens into the frame into the frame? (Boy, I definitely could have phrased that better.) Go to the bathroom and get yourself a cardboard tube from inside a roll of toilet paper. Put it to your eye and take note of how much of the view you can see through the tube. Now cut the tube in half and look through it again. You can see more of the view. This is because the angle from opposite points on the ends of the short tube is wider than the angle from the same points on the long tube. Bob -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
OT: LDV
quite an interesting story here about Leonardo's Last Supper: http://news.bbc.co.uk/1/hi/world/europe/7088600.stm I took a closer look and transcribed the notes. Here's how they came out: http://wavcentral.com/cgi-bin/log/log.cgi?id=481sound=/sounds/movies/ closenc/close03.mp3 -- Regards, Bob -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: OT: LDV
wow, that's downright cool rg2 On 11/10/07, Bob W [EMAIL PROTECTED] wrote: quite an interesting story here about Leonardo's Last Supper: http://news.bbc.co.uk/1/hi/world/europe/7088600.stm I took a closer look and transcribed the notes. Here's how they came out: http://wavcentral.com/cgi-bin/log/log.cgi?id=481sound=/sounds/movies/ closenc/close03.mp3 -- Regards, Bob -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- the subject of a photograph is far less important than its composition -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Question - Barrel Distortion vs Perspective Distortion?
In a message dated 11/10/2007 8:08:15 A.M. Pacific Standard Time, [EMAIL PROTECTED] writes: Go to the bathroom and get yourself a cardboard tube from inside a roll of toilet paper. Put it to your eye and take note of how much of the view you can see through the tube. Now cut the tube in half and look through it again. You can see more of the view. This is because the angle from opposite points on the ends of the short tube is wider than the angle from the same points on the long tube. Bob Huh. That is a very simple explanation. Thanks. I need to think about all this more and read that article, because I suspect I have another question hovering. Or another thought. Thanks, Marnie aka Doe ;-) Recent to wide angle clueless. - Warning: I am now filtering my email, so you may be censored. ** See what's new at http://www.aol.com -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: RBAR Pano
Small (1852x350 pixels, ~115kb) http://www.arach.net.au/~savage/Misc/Images/K10D/RBAR_002_sml.jpg Medium (3175x600 pixels, ~310kb) http://www.arach.net.au/~savage/Misc/Images/K10D/RBAR_002_med.jpg Large (4234x800 pixels, ~630kb) http://www.arach.net.au/~savage/Misc/Images/K10D/RBAR_002_lrg.jpg Awesome! Make a print and frame it, man. That belongs on a wall. John -- http://www.neovenator.com http://www.cafepress.com/neovenatorphoto -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO - Romantic II
In a message dated 11/10/2007 7:56:10 A.M. Pacific Standard Time, [EMAIL PROTECTED] writes: I think the colors are great - and I think that the picture would look great with or without the people in it, whichever suits you best personally. rg2 = Thanks! Marnie aka Doe :-) I like it with people, ergo the title. I got plenty without people. - Warning: I am now filtering my email, so you may be censored. ** See what's new at http://www.aol.com -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Question - Barrel Distortion vs Perspective Distortion?
In a message dated 11/10/2007 8:08:15 A.M. Pacific Standard Time, [EMAIL PROTECTED] writes: Go to the bathroom and get yourself a cardboard tube from inside a roll of toilet paper. Put it to your eye and take note of how much of the view you can see through the tube. Now cut the tube in half and look through it again. You can see more of the view. This is because the angle from opposite points on the ends of the short tube is wider than the angle from the same points on the long tube. Bob === Basically then, because a wide angle is getting more in the frame than would be possible, when one gets more a subject in the fame as well (like the bottom of the building versus the top) perspective distortion is more pronounced. More in frame, wide angle, more of subject in frame, framing -- more perspective distortion. Correct? Maybe there is a web page somewhere that goes over this. I'll do some research. I want to know when I can expect it and use it as an element in composing the shot (sometimes it's a nice take on things), and when I can work around it or not have it. Thanks, Marnie - Warning: I am now filtering my email, so you may be censored. ** See what's new at http://www.aol.com -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
RE: Question - Barrel Distortion vs Perspective Distortion?
=== Basically then, because a wide angle is getting more in the frame than would be possible, when one gets more a subject in the fame as well (like the bottom of the building versus the top) perspective distortion is more pronounced. More in frame, wide angle, more of subject in frame, framing -- more perspective distortion. Correct? more _apparent_ distortion. It's not actual distortion. Maybe there is a web page somewhere that goes over this. I'll do some research. You might be better off looking at a decent introductory photography book I want to know when I can expect it and use it as an element in composing the shot (sometimes it's a nice take on things), and when I can work around it or not have it. The book Photography by London and Upton has been used for teaching photography for many years and contains a lot of solid advice on all aspects of photography. You can probably find it quite easily in your local library or used bookshop. It has some good stuff about this, and a good example of the way perspective changes with the lens-subject distance, and the affect of different focal lengths. Bob -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
RE: Question - Barrel Distortion vs Perspective Distortion?
distance, and the affect of different focal lengths. whoops. Effect. -- Bob The book Photography by London and Upton has been used for teaching photography for many years and contains a lot of solid advice on all aspects of photography. You can probably find it quite easily in your local library or used bookshop. It has some good stuff about this, and a good example of the way perspective changes with the lens-subject distance, and the affect of different focal lengths. Bob -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Question - Barrel Distortion vs Perspective Distortion?
In a message dated 11/10/2007 8:51:44 A.M. Pacific Standard Time, [EMAIL PROTECTED] writes: The book Photography by London and Upton has been used for teaching photography for many years and contains a lot of solid advice on all aspects of photography. You can probably find it quite easily in your local library or used bookshop. It has some good stuff about this, and a good example of the way perspective changes with the lens-subject distance, and the affect of different focal lengths. Bob === Great, thanks! Really haven't got this particular aspect in any photography classes to date. Well, actually I just recently also found out I don't understand DOF as well as I thought I did. But that's me, because I am sure some teacher covered it. And that's another question. One I may not ask, because I can probably get that out of a book as well. I've been using it pretty effectively, but some aspects of it I really misunderstood. You know, I just wanna take pretty pictures and not think about the technical aspects too much. But sometimes, sigh, it becomes necessary. Marnie aka Doe ;-) - Warning: I am now filtering my email, so you may be censored. ** See what's new at http://www.aol.com -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: GESO: Magnolia Gardens
Rebekah, There are some nice shots here--particularly #s 6, 7, and 9. 1 doesn't work for me; there is a lot of glare and no real subject or pattern to catch my interest. 2 is nice, but you might consider a tighter crop to reduce the impact of the twig at top left. 3 might benefit from cropping the left 40% and reducing the brightness. The dragonfly gets kinda lost in the background as it is. 8 is a nice scene, but is overexposed (esp. the top half). Did you use a graduated neutral-density filter? 10 could use a substantial crop, because the salamander gets lost. Cheers, Rick --- Rebekah [EMAIL PROTECTED] wrote: Well, I finally got a few slides scanned from my Magnolia Gardens trip last month. The first seven are Velvia 50. Sadly, the scanner didn't seem to recognize my darker slides, which of course were a few of my favorites, and of course the scanner was all dusty. But, I'm glad to have gotten a few up to a gallery anyways, and hopefully in the future I can get a better scan on them. Enjoy, and thanks for looking at my first gallery! :) http://picasaweb.google.com/rg2pdml/Magnolia rg2 -- my wide angle lens is what I use so I don't have to step back to take the picture I'm going to crop anyways -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. http://www.photo.net/photos/RickW __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: GESO: Magnolia Gardens
Rebekah, There are some nice shots here--particularly #s 6, 7, and 9. 1 doesn't work for me; there is a lot of glare and no real subject or pattern to catch my interest. 2 is nice, but you might consider a tighter crop to reduce the impact of the twig at top left. 3 might benefit from cropping the left 40% and reducing the brightness. The dragonfly gets kinda lost in the background as it is. 8 is a nice scene, but is overexposed (esp. the top half). Did you use a graduated neutral-density filter? 10 could use a substantial crop, because the salamander gets lost. Cheers, Rick --- Rebekah [EMAIL PROTECTED] wrote: Well, I finally got a few slides scanned from my Magnolia Gardens trip last month. The first seven are Velvia 50. Sadly, the scanner didn't seem to recognize my darker slides, which of course were a few of my favorites, and of course the scanner was all dusty. But, I'm glad to have gotten a few up to a gallery anyways, and hopefully in the future I can get a better scan on them. Enjoy, and thanks for looking at my first gallery! :) http://picasaweb.google.com/rg2pdml/Magnolia rg2 -- my wide angle lens is what I use so I don't have to step back to take the picture I'm going to crop anyways -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. http://www.photo.net/photos/RickW __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO: RBAR Pano
David Savage wrote: I took this last weekend: http://www.arach.net.au/~savage/Misc/Images/K10D/RBAR_002_lrg.jpg A good example I think of how panoramas don't just have to be of static subjects. Brilliant! I haven't done any panos in a while and this has really inspired me. I'll have to try something like that. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: RE: First shots with the 67
Tom C wrote: Godfrey DiGiorgi On Nov 9, 2007, at 12:52 PM, Mark Roberts wrote: http://www.robertstech.com/temp/67-1.jpg Very nice, Mark. All the elements play together well. My only criticism is that the upper left corner seems brighter than I'd like, it draws my eye up and away from the central point of interest. I agree basically about that area. It's not the brightness that bother me, but that there is so very little of that element, the tree trunks, that it distracts instead of being complementary. Not sure how to make it better or if a crop would help or not. Just a minor observation. You're both right - that upper corner bothered me from the beginning. I've burned it in a bit and cropped the image slightly, which I think has helped. (I've updated the image a couple of times since I put it on line. I'm not sure which you've seen - if it was the latest then you won't see any change at all from when you first looked at it: If you find you can't see the changes I just mentioned that's why!) I think I can get a good image out of it with a little work. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: RE: First shots with the 67
Mark, while, as I stated earlier, I like the image fine as is, I'll add that the upper left rock has a minor brown tone that is more noticeable to me than its brightness. There is some brighter glare on the lower rock surfaces. Jack --- Mark Roberts [EMAIL PROTECTED] wrote: Tom C wrote: Godfrey DiGiorgi On Nov 9, 2007, at 12:52 PM, Mark Roberts wrote: http://www.robertstech.com/temp/67-1.jpg Very nice, Mark. All the elements play together well. My only criticism is that the upper left corner seems brighter than I'd like, it draws my eye up and away from the central point of interest. I agree basically about that area. It's not the brightness that bother me, but that there is so very little of that element, the tree trunks, that it distracts instead of being complementary. Not sure how to make it better or if a crop would help or not. Just a minor observation. You're both right - that upper corner bothered me from the beginning. I've burned it in a bit and cropped the image slightly, which I think has helped. (I've updated the image a couple of times since I put it on line. I'm not sure which you've seen - if it was the latest then you won't see any change at all from when you first looked at it: If you find you can't see the changes I just mentioned that's why!) I think I can get a good image out of it with a little work. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: First shots with the 67
On 09/11/07, Mark Roberts, discombobulated, unleashed: Here's a sample shot. Another Tony Hallmark Greeting Card Sweet type shot from GFM (a couple of weeks prior to my trip with Doug). http://www.robertstech.com/temp/67-1.jpg Wow - very nice. -- Cheers, Cotty ___/\__ || (O) | People, Places, Pastiche ||=|http://www.cottysnaps.com _ -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: A PDML jubilant?
On 09/11/07, William Robb, discombobulated, unleashed: Today is the sad day. Bill 50? JEES. Nice one bill. -- Cheers, Cotty ___/\__ || (O) | People, Places, Pastiche ||=|http://www.cottysnaps.com _ -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO: RBAR Pano
On 10/11/07, David Savage, discombobulated, unleashed: I took this last weekend: Small (1852x350 pixels, ~115kb) http://www.arach.net.au/~savage/Misc/Images/K10D/RBAR_002_sml.jpg Medium (3175x600 pixels, ~310kb) http://www.arach.net.au/~savage/Misc/Images/K10D/RBAR_002_med.jpg Large (4234x800 pixels, ~630kb) http://www.arach.net.au/~savage/Misc/Images/K10D/RBAR_002_lrg.jpg Great work Dave - that's excellent work mate. -- Cheers, Cotty ___/\__ || (O) | People, Places, Pastiche ||=|http://www.cottysnaps.com _ -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: A PDML jubilant?
AlunFoto wrote: IIRC, William Robb is turning 50 one of these days. I'll risk trusting my memory: Happy birthday, Wheatfield. :-) Cheers, Jostein Wow. I thought he was much older than that. Anyway, belated birthday wishes. And many, many more of them. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Peso: Ugly tatooed girl badly photographed in cheap underwear
William Robb wrote: - Original Message - From: mike wilson Subject: Re: Peso: Ugly tatooed girl badly photographed in cheap underwear http://users.accesscomm.ca/wrobb/temp/Logo_Say.html For the curious. Thanks for looking and commenting. Disappointing. I was hoping for Best Bang for the Buck. The photo, however, is not. Disappointing, that is. Much less visually disturbing than the first, although I do find myself drawn to that one over and over. The poor girl has the worst complexion in the world, and a really unfortunately hooked nose. I did my best with the first picture, but the plastic surgery was less successful than I would have hoped. Both pictures were pretty heavily treated for acne. Thanks for looking In that case I would say that you did magnificent work, especially with the second shot. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO - Water Temple II
[EMAIL PROTECTED] wrote: In a message dated 11/9/2007 1:05:06 A.M. Pacific Standard Time, [EMAIL PROTECTED] writes: From: [EMAIL PROTECTED] Date: 2007/11/09 Fri AM 06:59:20 GMT To: pdml@pdml.net Subject: Re: PESO - Water Temple II In a message dated 11/8/2007 1:21:25 P.M. Pacific Standard Time, [EMAIL PROTECTED] writes: Excellent work on both images. The composition in the view from beneath is great and the converging verticals on the second shot add impact - definitely not one to try to fix the perspective! Structures from a time when infrastructure didn't just have to be purely functional. Indeed. And, if you look at the location, there was no need to make it other than purely functional. http://www.flashearth.com/?lat=37.585432lon=-121.885501z=20r=0src=msl Well done for recording this (in an interesting way, too) before some philistine has it removed because it needs a little maintenance. == Interesting, Mike. That lets me see what was in those dirt mounds, nothing. It's been a very dry year. I think there is water there some years. But not sure. Although I have seen pictures of water on some site related to the Water Temple. I doubt they will, they spent a lot of money restoring it and a lot of time, three years. It seems to be a preprocessing plant, filtering water from various damns before it goes to SF. But I am not sure about that. Thanks for the aerial shot. My pleasure. I do that quite a lot when people give specific locations. It helps me get a better perspective on some shots. Just for interest, here is the roof of the conservatory where I am writing this. Although it's dark, now. http://www.flashearth.com/?lat=54.89249lon=-1.546691z=20r=0src=ggl -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: HyperProgram no longer a Pentax exclusive
On 2007-11-07, at 21:48, Adam Maas wrote: So I've been reading the manual for the new Sony A700 (Very nice camera btw, unlike the unimpressive A100) and noticed that it has PA and PS Program shift modes, which are for all intents and purposes HyperProgram. Turning the aperture dial drops the camera into Av mode, and the shutter dial to Tv mode. It does lack the green button program-line reset however. It was present in all two wheel Minolta SLRs since Xi series from the begining of around 1990... However it is not as flexible and well thought out as Pentax version. First - it is reset to program when camera goes to sleep (metering is switched off) second, it won't work when you use flash. And of course as you mentioned there's no way to reset to P by single button - you could do it probably only by opening, then closing built-in flash and there are no program lines as in Pentax. Cheers, Sylwek -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO - Water Temple II
In a message dated 11/10/2007 11:38:34 A.M. Pacific Standard Time, [EMAIL PROTECTED] writes: My pleasure. I do that quite a lot when people give specific locations. It helps me get a better perspective on some shots. Just for interest, here is the roof of the conservatory where I am writing this. Although it's dark, now. Very pretty. Heh. Just looked my house up. That's cool. Also a bit disturbing. Marnie aka Doe :-) - Warning: I am now filtering my email, so you may be censored. ** See what's new at http://www.aol.com -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: RBAR Pano
Yeah, what Cory said. Pretty nifty how you managed to get all 9 planes into the one shot.. :-) Cheers Brian ++ Brian Walters Western Sydney, Australia http://members.westnet.com.au/brianwal/SL/ http://www.blognow.com.au/peso1/ http://www.pentaxphotogallery.com/brianwalters Quoting cbwaters [EMAIL PROTECTED]: Good God David, That's effing awesome! Cory - Original Message - From: David Savage [EMAIL PROTECTED] To: pdml@pdml.net Sent: Saturday, November 10, 2007 8:51 AM Subject: PESO: RBAR Pano G'day All, I took this last weekend: Small (1852x350 pixels, ~115kb) http://www.arach.net.au/~savage/Misc/Images/K10D/RBAR_002_sml.jpg Medium (3175x600 pixels, ~310kb) http://www.arach.net.au/~savage/Misc/Images/K10D/RBAR_002_med.jpg Large (4234x800 pixels, ~630kb) http://www.arach.net.au/~savage/Misc/Images/K10D/RBAR_002_lrg.jpg K10D, DA* 16-50mm f2.8 @ 50mm, 1/1250 @ f8, ISO 100, 10 frames stitched using PTGui, layers edited in PS CS2. A good example I think of how panoramas don't just have to be of static subjects. As always any all comments welcome. Cheers, Dave -- Get a free email account with anti spam protection. http://www.bluebottle.com/tag/2 -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Question - Barrel Distortion vs Perspective Distortion?
On Nov 10, 2007, at 8:35 AM, [EMAIL PROTECTED] wrote: Basically then, because a wide angle is getting more in the frame than would be possible, when one gets more a subject in the fame as well (like the bottom of the building versus the top) perspective distortion is more pronounced. More in frame, wide angle, more of subject in frame, framing -- more perspective distortion. Correct? Maybe there is a web page somewhere that goes over this. I'll do some research. I want to know when I can expect it and use it as an element in composing the shot (sometimes it's a nice take on things), and when I can work around it or not have it. Perspective (and thus perspective distortion) is the result of the distance and angular relationship of the camera and the subject. It is independent of focal length and optics. This web page shows a sequence of exposures taken from a single position with focal lengths from 16mm to 135mm using the two DA* zooms, the K10D, manual focus and exposure. The final image in the sequence is a crop of the 16mm exposure to show the same portion of the scene as the 135mm exposure. Aside from the slight misfocus of the 16mm exposure and its increased DoF (as well as a tiny vertical shift from changing lenses) you can see that perspective is invariant with focal length. http://homepage.mac.com/godders/perspective/ Perspective distortion on vertical and horizontal scene elements (convergence, divergence, keystoning, etc) happens when the plane of the sensor (or film) is not parallel to the plane of the subject. Another form of perspective distortion is seen when using a very wide angle lens and a small aperture to permit a very deep zone of sharp focus, and you have subject matter in the near field as well as the far field. The near field items will look disproportionately larger than the far field items ... this is called foreshortening. Again, it is not variable by focal length but is simply made apparent by a wider field of view. --- Rectilinear distortions (aka barrel, pincushion or curvilinear distortions) are optical effects the come from lens design. A fish- eye lens is a lens corrected to produce a spherical projection, a rectilinear lens is a lens corrected to produce a flat-field projection. Pentax Fish-Eye-Takumar 17mm f/4 lens on 4/3 format, natural curvilinear projection: http://www.gdgphoto.com/FoV-43_11-50/content/bin/images/large/ P1030616.jpg The same lens, image corrected for rectilinear projection: http://www.gdgphoto.com/FoV-43_11-50/content/bin/images/large/ Pe1030616.jpg Godfrey -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO - Fallen
Nice combinations of colours and textures although I'd have liked a bit more intensity in the colour of the leaf. Well spotted - I'd have probably trampled it underfoot and never noticed the possibility Cheers Brian ++ Brian Walters Western Sydney, Australia http://members.westnet.com.au/brianwal/SL/ http://www.blognow.com.au/peso1/ http://www.pentaxphotogallery.com/brianwalters Quoting Bruce Dayton [EMAIL PROTECTED]: More evidence of the changing season. Pentax K10D, DA* 50-135/2.8 @ 135mm ISO 400, 1/125 sec @ f/11, handheld http://www.daytonphoto.com/PAW/bkd_5278.htm -- Bruce -- -- Get a free email account with anti spam protection. http://www.bluebottle.com/tag/2 -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO - Cluster
I like the way these pods stand out from the background. Nicely done. Cheers Brian ++ Brian Walters Western Sydney, Australia http://members.westnet.com.au/brianwal/SL/ http://www.blognow.com.au/peso1/ http://www.pentaxphotogallery.com/brianwalters Quoting Bruce Dayton [EMAIL PROTECTED]: Taken on my morning walk. Pentax K10D, DA* 50-135/2.8 @ 135mm ISO 200, 1/90 sec @ f/4.5 http://www.daytonphoto.com/PAW/bkd_5270.htm -- Bruce -- Free pop3 email with a spam filter. http://www.bluebottle.com/tag/5 -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO: RBAR Pano
David Savage wrote: G'day All, I took this last weekend: Small (1852x350 pixels, ~115kb) http://www.arach.net.au/~savage/Misc/Images/K10D/RBAR_002_sml.jpg Medium (3175x600 pixels, ~310kb) http://www.arach.net.au/~savage/Misc/Images/K10D/RBAR_002_med.jpg Large (4234x800 pixels, ~630kb) http://www.arach.net.au/~savage/Misc/Images/K10D/RBAR_002_lrg.jpg K10D, DA* 16-50mm f2.8 @ 50mm, 1/1250 @ f8, ISO 100, 10 frames stitched using PTGui, layers edited in PS CS2. A good example I think of how panoramas don't just have to be of static subjects. VERY VERY COOL! What a great idea! -- Christian http://photography.skofteland.net -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
PESO 2007 - 46d - GDG
I see this scene most Saturday mornings on my walk. Today, the light cooperated. :-) http://homepage.mac.com/ramarren/photo/PAW7/46d.htm Comments, critique, etc always appreciated. enjoy Godfrey -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Question - Barrel Distortion vs Perspective Distortion?
thanks for these two images. worth a thousand words. I feel I have now a much better visual idea of how the fisheye distortion of the DA 10-17 will affect all angles, i.e. a better idea of the essential difference between DA 10-17 and DA 12-24: they indeed really are two different lenses. cool... (and it's also always interesting to have a look at someone's book shelves :-) Axel. Rectilinear distortions (aka barrel, pincushion or curvilinear distortions) are optical effects the come from lens design. A fish- eye lens is a lens corrected to produce a spherical projection, a rectilinear lens is a lens corrected to produce a flat-field projection. Pentax Fish-Eye-Takumar 17mm f/4 lens on 4/3 format, natural curvilinear projection: http://www.gdgphoto.com/FoV-43_11-50/content/bin/images/large/ P1030616.jpg The same lens, image corrected for rectilinear projection: http://www.gdgphoto.com/FoV-43_11-50/content/bin/images/large/ Pe1030616.jpg -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO 2007 - 46d - GDG
I like it but I think it might be more powerful if the path had ran diagonally corner to corner. Evan -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Question - Barrel Distortion vs Perspective Distortion?
In a message dated 11/10/2007 1:39:10 P.M. Pacific Standard Time, [EMAIL PROTECTED] writes: Perspective (and thus perspective distortion) is the result of the distance and angular relationship of the camera and the subject. It is independent of focal length and optics. This web page shows a sequence of exposures taken from a single position with focal lengths from 16mm to 135mm using the two DA* zooms, the K10D, manual focus and exposure. The final image in the sequence is a crop of the 16mm exposure to show the same portion of the scene as the 135mm exposure. Aside from the slight misfocus of the 16mm exposure and its increased DoF (as well as a tiny vertical shift from changing lenses) you can see that perspective is invariant with focal length. http://homepage.mac.com/godders/perspective/ Perspective distortion on vertical and horizontal scene elements (convergence, divergence, keystoning, etc) happens when the plane of the sensor (or film) is not parallel to the plane of the subject. Another form of perspective distortion is seen when using a very wide angle lens and a small aperture to permit a very deep zone of sharp focus, and you have subject matter in the near field as well as the far field. The near field items will look disproportionately larger than the far field items ... this is called foreshortening. Again, it is not variable by focal length but is simply made apparent by a wider field of view. --- Rectilinear distortions (aka barrel, pincushion or curvilinear distortions) are optical effects the come from lens design. A fish- eye lens is a lens corrected to produce a spherical projection, a rectilinear lens is a lens corrected to produce a flat-field projection. Pentax Fish-Eye-Takumar 17mm f/4 lens on 4/3 format, natural curvilinear projection: http://www.gdgphoto.com/FoV-43_11-50/content/bin/images/large/ P1030616.jpg The same lens, image corrected for rectilinear projection: http://www.gdgphoto.com/FoV-43_11-50/content/bin/images/large/ Pe1030616.jpg Godfrey == Thanks, Godfrey. Very complete explanation (although a tad confusing. I found Bob's cardboard tube example about my level. :-)) But I am getting it. So I will print this out and read it over again and see if it falls into place. I probably, just for my own interest, should do some of my own test shots. Because I found all of your shots very illustrative. So I might try using the 16-45 on a building to explore this more. Thanks again, Godfrey, thanks mucho mucho for taking the time. Marnie aka Doe :-) Hopefully this thread has been of help to someone else as well. - Warning: I am now filtering my email, so you may be censored. ** See what's new at http://www.aol.com -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Impossible reflections -- photo-puzzle (raspberries again) -- Answer
Yep, Bob is correct. I would have offered the photo-model as a prize, but it wouldn't survive. :-) This is how the shot is(was) intended: http://www.komkon.org/~igor/PHOTOS/Raspberries/IMGP9655e.jpg Then I noticed the extra reflection and was puzzled at first, figuring out where it came from. The I realized that the 2nd reflection was from the 2nd (bottom) surface of the glass (it was our kitchen table with a black glass top). It was possible to see it because the camera was sitting very low and almost horizontally. To enhance the confusion I used Fill Light to brighten the darker part. Thanks to everybody for looking and playing along! Igor On Nov 10, 2007, at 4:23 AM, Bob Sullivan wrote: One berryin very bright light, plus primary reflection off front surface, plus seconary reflection off bottom surface of 'glass'. Regards, Bob S. On Nov 9, 2007 10:47 PM, Igor Roshchin str at komkon.org wrote: While sorting out photos of raspberries (see the other message I just sent) for a few moments, I was really puzzled by one of the photos. So, let me offer you this photo-puzzle. Here is a photo: http://www.komkon.org/~igor/PHOTOS/Mixed-2005-2007/IMGP9655-2.jpg I didn't do any pixel movement, cloning, adding or removing features. I only changed brightness, saturation, sharpness, and cropped it a bit (~5%). To make it absolutely clear, I didn't even remove any dust spots. How many berries are in the photo? (Where is(are) the berry(ies) and where is the reflection?) -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: OT: LDV
In a message dated 11/10/2007 8:19:04 A.M. Pacific Standard Time, [EMAIL PROTECTED] writes: quite an interesting story here about Leonardo's Last Supper: http://news.bbc.co.uk/1/hi/world/europe/7088600.stm I took a closer look and transcribed the notes. Here's how they came out: http://wavcentral.com/cgi-bin/log/log.cgi?id=481sound=/sounds/movies/ closenc/close03.mp3 -- Regards, Bob LOL. Well, seeing musical notes in the Last Supper is more logical than some other things. Marnie aka Doe :-) - Warning: I am now filtering my email, so you may be censored. ** See what's new at http://www.aol.com -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Photo Expo West and Pentax new equipment
I went today to the Photo Expo West (http://www.photoexpowest.com/) - a Photo Exposition organized in San Diego by Delkin. A few impressions and a few bits of information (FWIW). I had a chance to talk briefly with the West Coast distribution manager (or something like that) of Pentax. 1. Pentax SMC 18-250 is ready. They were showing the preproduction unit, and indicated that they expect the shipping to the stores very soon, possibly at the end of the next week, or the following week. (Boris, - I believe you were interested in that lens.) Regarding its design and manufacturing he responded that it is indeed based on the Tamron but manufactured by Pentax (it has Pentax glass), and it is manufactured in Japan (the one on display was labeled as such). The MSRP is set at $499. The external design and feel of the lens was exactly the same as that of the Tamron one that was also present at the show. 2. The DA* 200 and the 300 (both SDM) were expected to appear in stores before Christmas. It is still possible they will, but it is not clear right now. 3. DA* 60-250 will not be on the market before Christmas. It is unclear when, but it is possible that it will be late January, or at least by/before the PMA. 4. To my naive question about the rumored new body, he smiled and said that PMA will be interesting this year. That's all about Pentax. Overall, Pentax table was much smaller than that of either of Nikon, Canon, and even Tamron. Pentax's table was in the middle, which probably helped them a bit with attracting attention, but Nikon and Canon areas were much more crowded. Sony was in the back, so at least at the time I saw that table, 2 or 3 representatives were talking with only one visitor. I was impressed by the quality of the HP-branded canvas paper (and a black-and-white print by HP photo-jet printer on it). Sorry, I didn't register the printer model number, but I suspect it is the one competing against Epson R2400, costing, IRC, $699, including cartridges, which cost $33 each and can be replaced separately. These are the main impressions. Unfortunately, I had rather limited time, so I didn't have time to see what interesting was presented by N. and C. Actually, I was impressed by the size of a telescope-like looking Canon lense, mounted on a heavy-duty tripod. My wife who suggests that soon we'll need a pony to carry around my photo gear, agreed with me that that lens will be too heavy for the poor pony. That's all news, folks! Igor -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Photo Expo West and Pentax new equipment
If the 18-250 is made in Japan, it's either being made in a Hoya factory or likely being produced by Tamron using Pentax-coated and ground glass. Most Pentax lenses of that ilk are made in Vietnam. Note that Tamron is also producing a Sony version of this lens, with Minolta-derived coatings and differing AF gearing. -Adam Igor Roshchin wrote: I went today to the Photo Expo West (http://www.photoexpowest.com/) - a Photo Exposition organized in San Diego by Delkin. A few impressions and a few bits of information (FWIW). I had a chance to talk briefly with the West Coast distribution manager (or something like that) of Pentax. 1. Pentax SMC 18-250 is ready. They were showing the preproduction unit, and indicated that they expect the shipping to the stores very soon, possibly at the end of the next week, or the following week. (Boris, - I believe you were interested in that lens.) Regarding its design and manufacturing he responded that it is indeed based on the Tamron but manufactured by Pentax (it has Pentax glass), and it is manufactured in Japan (the one on display was labeled as such). The MSRP is set at $499. The external design and feel of the lens was exactly the same as that of the Tamron one that was also present at the show. 2. The DA* 200 and the 300 (both SDM) were expected to appear in stores before Christmas. It is still possible they will, but it is not clear right now. 3. DA* 60-250 will not be on the market before Christmas. It is unclear when, but it is possible that it will be late January, or at least by/before the PMA. 4. To my naive question about the rumored new body, he smiled and said that PMA will be interesting this year. That's all about Pentax. Overall, Pentax table was much smaller than that of either of Nikon, Canon, and even Tamron. Pentax's table was in the middle, which probably helped them a bit with attracting attention, but Nikon and Canon areas were much more crowded. Sony was in the back, so at least at the time I saw that table, 2 or 3 representatives were talking with only one visitor. I was impressed by the quality of the HP-branded canvas paper (and a black-and-white print by HP photo-jet printer on it). Sorry, I didn't register the printer model number, but I suspect it is the one competing against Epson R2400, costing, IRC, $699, including cartridges, which cost $33 each and can be replaced separately. These are the main impressions. Unfortunately, I had rather limited time, so I didn't have time to see what interesting was presented by N. and C. Actually, I was impressed by the size of a telescope-like looking Canon lense, mounted on a heavy-duty tripod. My wife who suggests that soon we'll need a pony to carry around my photo gear, agreed with me that that lens will be too heavy for the poor pony. That's all news, folks! Igor -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Photo Expo West and Pentax new equipment
If the 18-250 is made in Japan, it's either being made in a Hoya factory or likely being produced by Tamron using Pentax-coated and ground glass. Most Pentax lenses of that ilk are made in Vietnam. Note that Tamron is also producing a Sony version of this lens, with Minolta-derived coatings and differing AF gearing. -Adam - I suspect that it will be manufactured by Tamron. This will be a high-volume lens, and Pentax's facilities in Japan are no longer sufficient for that. Joe - Igor Roshchin wrote: I went today to the Photo Expo West (http://www.photoexpowest.com/) - a Photo Exposition organized in San Diego by Delkin. A few impressions and a few bits of information (FWIW). I had a chance to talk briefly with the West Coast distribution manager (or something like that) of Pentax. 1. Pentax SMC 18-250 is ready. They were showing the preproduction unit, and indicated that they expect the shipping to the stores very soon, possibly at the end of the next week, or the following week. (Boris, - I believe you were interested in that lens.) Regarding its design and manufacturing he responded that it is indeed based on the Tamron but manufactured by Pentax (it has Pentax glass), and it is manufactured in Japan (the one on display was labeled as such). -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Photo Expo West and Pentax new equipment
Joseph Tainter wrote: If the 18-250 is made in Japan, it's either being made in a Hoya factory or likely being produced by Tamron using Pentax-coated and ground glass. Most Pentax lenses of that ilk are made in Vietnam. Note that Tamron is also producing a Sony version of this lens, with Minolta-derived coatings and differing AF gearing. -Adam - I suspect that it will be manufactured by Tamron. This will be a high-volume lens, and Pentax's facilities in Japan are no longer sufficient for that. Joe That's my guess, unless Hoya's got some spare manufacturing capacity (And if it does, I hope it's being dedicated to DA*'s instead. I'd rather have a Tamron-produced 18-250 if it means a decent supply of DA* glass). -Adam -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Photo Expo West and Pentax new equipment
How can an almost 14:1 zoom be of any real value? Regards, Bob... -- Gort, klaatu barrada nikto! -- Guess the author! -- Guess the source! - Original Message - From: Joseph Tainter [EMAIL PROTECTED] If the 18-250 is made in Japan, it's either being made in a Hoya factory or likely being produced by Tamron using Pentax-coated and ground glass. Most Pentax lenses of that ilk are made in Vietnam. Note that Tamron is also producing a Sony version of this lens, with Minolta-derived coatings and differing AF gearing. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Photo Expo West and Pentax new equipment
Bob Blakely wrote: How can an almost 14:1 zoom be of any real value? Regards, Bob... Backpacking, Hiking, Vacation. Any place where you want a large range of focal lengths, but weight and/or size is a limiting factor. They're also popular with the general population as they provide much of the convenience of a PS, with the cachet of an SLR. It's amazing how many people buy an interchangable SLR, then buy a lens specifcially so they'll never want to take it off. -Adam -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Question - Barrel Distortion vs Perspective Distortion?
In a message dated 11/10/2007 1:39:10 P.M. Pacific Standard Time, [EMAIL PROTECTED] writes: Perspective (and thus perspective distortion) is the result of the distance and angular relationship of the camera and the subject. It is independent of focal length and optics. == Okay, but it is more noticeable on a wide angle. Marnie aka Doe :-) - Warning: I am now filtering my email, so you may be censored. ** See what's new at http://www.aol.com -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Photo Expo West and Pentax new equipment
- Original Message - From: Bob Blakely Subject: Re: Photo Expo West and Pentax new equipment How can an almost 14:1 zoom be of any real value? There's a lot of people (the vast majority) who wan't an SLR for a variety of reasons having nothing to do with interchangable lenses. They'll eat this lens up, since they will never need to buy another lens, or change lenses. William Robb -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Photo Expo West and Pentax new equipment
Several years ago people used to say the same thing about 10:1 zooms. Then Canon managed to come out with the 35-350, which showed that it was possible to come up with something quite usable. I'm sure that 14:1, especially for the reduced image circle sensor, will turn out to be perfectly acceptable as far as the prospective audience cares. Let's face it - nobody expects perfection for $500, but this baby is made for the 'soccer dads' who don't want to change lenses. (Why they've bought a DSLR, in that case, is a whole different question). On Sat, Nov 10, 2007 at 07:15:21PM -0800, Bob Blakely wrote: How can an almost 14:1 zoom be of any real value? Regards, Bob... -- Gort, klaatu barrada nikto! -- Guess the author! -- Guess the source! - Original Message - From: Joseph Tainter [EMAIL PROTECTED] If the 18-250 is made in Japan, it's either being made in a Hoya factory or likely being produced by Tamron using Pentax-coated and ground glass. Most Pentax lenses of that ilk are made in Vietnam. Note that Tamron is also producing a Sony version of this lens, with Minolta-derived coatings and differing AF gearing. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Question - Barrel Distortion vs Perspective Distortion?
In addition to giving a wider angle of view, the image produced by a wide-angle lens is more susceptible to perspective distortion than that produced by a normal lens, because they tend to be used much closer to the subject. Wikipedia's explanation of why perspective distortion is more evident with a wide angle. Which makes sense to me, because it would have been hard to get that water temple completely in the shot, at the distance I was from it, WITHOUT a wide angle. Marnie aka Doe :-) - Warning: I am now filtering my email, so you may be censored. ** See what's new at http://www.aol.com -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Photo Expo West and Pentax new equipment
On Nov 11, 2007 10:52 AM, Adam Maas [EMAIL PROTECTED] wrote: If the 18-250 is made in Japan, it's either being made in a Hoya factory or likely being produced by Tamron using Pentax-coated and ground glass. Most Pentax lenses of that ilk are made in Vietnam. Note that Tamron is also producing a Sony version of this lens, with Minolta-derived coatings and differing AF gearing. Made in Japan assembled elsewhere? Cheers, Dave -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Question - Barrel Distortion vs Perspective Distortion?
In a message dated 11/10/2007 1:39:10 P.M. Pacific Standard Time, [EMAIL PROTECTED] writes: Perspective (and thus perspective distortion) is the result of the distance and angular relationship of the camera and the subject. It is independent of focal length and optics. I am going to recap, just to show I am a good student. :-) Also it took me a while to get this. Perspective doesn't change according to focal length. As Godfrey's photos showed. Perspective distortion is caused by the distance and the angle (i.e. the angle the camera is held to the subject). So perspective doesn't change when one uses a wide angle. What does change is how one shoots when one uses a wide angle. One may move in closer, because one can, to get the whole subject in the frame. By doing that one has changed the distance and probably also the angle to the subject. I think I get an A. Okay, A-. Okay, B. It took me a while. This does give me a clearer idea of when it will occur and when I can avoid it. Thanks everyone who helped, Marnie aka Doe :-) - Warning: I am now filtering my email, so you may be censored. ** See what's new at http://www.aol.com -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO: RBAR Pano
On Nov 11, 2007 12:56 AM, Bruce Dayton [EMAIL PROTECTED] wrote: This is pretty cool. I am so used to seeing panos where the scene is just showing a wide expanse of a simple landscape - which usually includes part of the scene that are not very interesting. You have come up with a whole different presentation here. Bravo for the creativity and presentation! Thanks Bruce. I have to admit panoramas can bee boring sometimes, but I think the dynamic nature of this one works well. Cheers, Dave -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: RBAR Pano
On Nov 11, 2007 6:28 AM, Brian Walters [EMAIL PROTECTED] wrote: Yeah, what Cory said. Thanks Brian Pretty nifty how you managed to get all 9 planes into the one shot.. :-) 10 actually :-D Cheers, Dave Quoting cbwaters [EMAIL PROTECTED]: Good God David, That's effing awesome! Cory - Original Message - From: David Savage [EMAIL PROTECTED] Large (4234x800 pixels, ~630kb) http://www.arach.net.au/~savage/Misc/Images/K10D/RBAR_002_lrg.jpg -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: PESO: RBAR Pano
On Nov 11, 2007 2:52 AM, Mark Roberts [EMAIL PROTECTED] wrote: David Savage wrote: I took this last weekend: http://www.arach.net.au/~savage/Misc/Images/K10D/RBAR_002_lrg.jpg A good example I think of how panoramas don't just have to be of static subjects. Brilliant! I haven't done any panos in a while and this has really inspired me. I'll have to try something like that. I'm glad that something I've produced has inspired you. It's usually the other way around :-) Thanks for looking Cheers, Dave -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Photo Expo West and Pentax new equipment
Igor, Due to the time constraint and potential image quality issues ;-) I opted for DA 21/3.2 Limited lens, which should be arriving shortly I hope. I am very much hmmm scared by the amount of distortion on the wide end of 18-250 zoom. I'll probably wait for some reviews and then I'll decide. Your comment, well Pentax representative's comment about this year PMA is intriguing though ;-). I think, Pentax is feeling quite well. Cheers! Boris. P.S. I also answered to your quiz that it were only one berry and I trust I made so earlier than Bob did ;-). -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
