Re: sigma 18-50 f2.8
My brother has one of those and I have used it a fair amount. Seems to have nice glass (these is something about the way it renders bokha that looks different then Pentax, but not in a bad way). Build is nice and solid (it's heavy, but that's not surprising). The AF sucks on my DS, totally sluggish, but isn't bad (though slower then an 18-55) on a K10. Not having manual override (or what ever that is called) on the AF is a drag but can be lived with. The one my brother has seems to have a slight back focus problem but he hasn't done a conclusive test yet. Macro is sweet (very handy to have good macro on a walk around lens). Cheers, Francis www.islandlight.ca Larry Colen wrote: Saw an ad on CL for a Sigma 18-50mm f/2.8 EX DC SLD ELD Aspherical Macro Lens for Pentax and Samsung Digital SLR Cameras (581109) I don't remember seeing much mention of this lens in the normal zoom discusions. What's it like? It seems reasonably fast, at least faster than my 18-250. -- 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.
sigma 18-50 f2.8
Saw an ad on CL for a Sigma 18-50mm f/2.8 EX DC SLD ELD Aspherical Macro Lens for Pentax and Samsung Digital SLR Cameras (581109) I don't remember seeing much mention of this lens in the normal zoom discusions. What's it like? It seems reasonably fast, at least faster than my 18-250. -- It's not the steps in the dance, it's the dance in the steps. Larry Colen l...@red4est.comhttp://www.red4est.com/lrc -- 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: sigma 18-50 f2.8
On Feb 17, 2009, at 12:03 PM, Larry Colen wrote: Saw an ad on CL for a Sigma 18-50mm f/2.8 EX DC SLD ELD Aspherical Macro Lens for Pentax and Samsung Digital SLR Cameras (581109) I don't remember seeing much mention of this lens in the normal zoom discusions. What's it like? It seems reasonably fast, at least faster than my 18-250. If it's like most Sigma lenses, it would make me barf. I'm sorry, did I just use my outside voice? ;-0 G -- 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: sigma 18-50 f2.8
It's alright, but without HSM focusing the Tamron 17-50 and Pentax DA* 16-50 are better options (and the Tamron's typically cheaper than the Sigma) -Adam On Tue, Feb 17, 2009 at 3:03 PM, Larry Colen l...@red4est.com wrote: Saw an ad on CL for a Sigma 18-50mm f/2.8 EX DC SLD ELD Aspherical Macro Lens for Pentax and Samsung Digital SLR Cameras (581109) I don't remember seeing much mention of this lens in the normal zoom discusions. What's it like? It seems reasonably fast, at least faster than my 18-250. -- It's not the steps in the dance, it's the dance in the steps. Larry Colen l...@red4est.comhttp://www.red4est.com/lrc -- 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. -- M. Adam Maas http://www.mawz.ca Explorations of the City Around Us. -- 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: sigma 18-50 f2.8
Godfrey DiGiorgi wrote: On Feb 17, 2009, at 12:03 PM, Larry Colen wrote: Saw an ad on CL for a Sigma 18-50mm f/2.8 EX DC SLD ELD Aspherical Macro Lens for Pentax and Samsung Digital SLR Cameras (581109) I don't remember seeing much mention of this lens in the normal zoom discusions. What's it like? It seems reasonably fast, at least faster than my 18-250. If it's like most Sigma lenses, it would make me barf. I'm sorry, did I just use my outside voice? ;-0 HA! I appreciate your feelings for Sigma which you've expressed here quite frequently. I've only owned one Sigma lens: the 300/4 AF, blah, blah, blah macro and it was actually a fan-bloody-tastic lens. Except for its lack of IS I'd say it was pretty close to my Canon 300/4 IS. But my experience may be isolated since the lens I mentioned is not in production any more and has nothing whatsoever to do with the topic of this thread. -- Christian http://404mohawknotfound.blogspot.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: sigma 18-50 f2.8
On Tue, Feb 17, 2009 at 3:28 PM, Christian christ...@skofteland.net wrote: Godfrey DiGiorgi wrote: On Feb 17, 2009, at 12:03 PM, Larry Colen wrote: Saw an ad on CL for a Sigma 18-50mm f/2.8 EX DC SLD ELD Aspherical Macro Lens for Pentax and Samsung Digital SLR Cameras (581109) I don't remember seeing much mention of this lens in the normal zoom discusions. What's it like? It seems reasonably fast, at least faster than my 18-250. If it's like most Sigma lenses, it would make me barf. I'm sorry, did I just use my outside voice? ;-0 HA! I appreciate your feelings for Sigma which you've expressed here quite frequently. I've only owned one Sigma lens: the 300/4 AF, blah, blah, blah macro and it was actually a fan-bloody-tastic lens. Except for its lack of IS I'd say it was pretty close to my Canon 300/4 IS. But my experience may be isolated since the lens I mentioned is not in production any more and has nothing whatsoever to do with the topic of this thread. I've owned several Sigma's. The EX 10-20 was superb. The EX 50/2.8 Macro was quite good. The 24/2.8 Super-Wide II and 170-500 APO were decent. -- M. Adam Maas http://www.mawz.ca Explorations of the City Around Us. -- 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: sigma 18-50 f2.8
On Tue, Feb 17, 2009 at 12:08:46PM -0800, Godfrey DiGiorgi wrote: # # On Feb 17, 2009, at 12:03 PM, Larry Colen wrote: # # Saw an ad on CL for a Sigma 18-50mm f/2.8 EX DC SLD ELD Aspherical # Macro Lens for Pentax and Samsung Digital SLR Cameras (581109) # # I don't remember seeing much mention of this lens in the normal # zoom discusions. What's it like? It seems reasonably fast, at least # faster than my 18-250. # # If it's like most Sigma lenses, it would make me barf. # I'm sorry, did I just use my outside voice? ;-0 I know that Sigma doesn't have a stellar reputation. The only one I have is the 50-500 bigma. I came very close to getting a 30/1.4 but it got damaged in shipment. Every brand has winners and losers. Some brands have more winners, others have more losers. -- It's not the steps in the dance, it's the dance in the steps. Larry Colen l...@red4est.comhttp://www.red4est.com/lrc -- 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: sigma 18-50 f2.8
Larry Colen escribió: Saw an ad on CL for a Sigma 18-50mm f/2.8 EX DC SLD ELD Aspherical Macro Lens for Pentax and Samsung Digital SLR Cameras (581109) I don't remember seeing much mention of this lens in the normal zoom discusions. What's it like? It seems reasonably fast, at least faster than my 18-250. I have one of those lenses. It is quite a good zoom, well built and it focuses really close. Nowadays it is one of my 3 most used lenses, being the others the Pentax DA 50-135 2.8 and the Sigma EX 28 mm. 1.8 Get sure it is the latest macro version with a 72mm filter ring. The previous non macro version (67 mm. filter threads) is not as good as the latest one. The only drawbacks of the 18-50 EX macro are, besides not being a Pentax lens, distortion at 18 mm. (but all the lenses in the same category show more or less the same distortion), and the absence of SDM. As Adam wrote, the Tamron 17-50 2.8 is also a good alternative in this range. If I could afford one, I would buy a Pentax DA 16-50 2.8, but I'd also keep this Sigma. Carlos -- 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: sigma 18-50 f2.8
Carlos Royo escribió: The only drawbacks of the 18-50 EX macro are, besides not being a Pentax lens, distortion at 18 mm. (but all the lenses in the same category show more or less the same distortion), and the absence of SDM. I meant to say absence of QSF, not absence of SDM. The lens uses screwdriven AF, but I don't see that as a disadvantage. Damned acronyms. Carlos -- 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: sigma 18-50 f2.8
On Tue, Feb 17, 2009 at 5:23 PM, Carlos Royo carlos_r...@teleline.es wrote: Carlos Royo escribió: The only drawbacks of the 18-50 EX macro are, besides not being a Pentax lens, distortion at 18 mm. (but all the lenses in the same category show more or less the same distortion), and the absence of SDM. I meant to say absence of QSF, not absence of SDM. The lens uses screwdriven AF, but I don't see that as a disadvantage. Damned acronyms. Carlos Same difference in Sigma's case, you only get manual focus override with HSM. Only Pentax makes the clutched QSF-capable screwdriver lenses. -- M. Adam Maas http://www.mawz.ca Explorations of the City Around Us. -- 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: sigma 18-50 f2.8
On Tue, Feb 17, 2009 at 3:28 PM, Christian christ...@skofteland.net wrote: Godfrey DiGiorgi wrote: On Feb 17, 2009, at 12:03 PM, Larry Colen wrote: Saw an ad on CL for a Sigma 18-50mm f/2.8 EX DC SLD ELD Aspherical Macro Lens for Pentax and Samsung Digital SLR Cameras (581109) I don't remember seeing much mention of this lens in the normal zoom discusions. What's it like? It seems reasonably fast, at least faster than my 18-250. If it's like most Sigma lenses, it would make me barf. I'm sorry, did I just use my outside voice? ;-0 HA! I appreciate your feelings for Sigma which you've expressed here quite frequently. I've only owned one Sigma lens: the 300/4 AF, blah, blah, blah macro and it was actually a fan-bloody-tastic lens. Except for its lack of IS I'd say it was pretty close to my Canon 300/4 IS. I still have mine and i really like it. Dave But my experience may be isolated since the lens I mentioned is not in production any more and has nothing whatsoever to do with the topic of this thread. -- Christian http://404mohawknotfound.blogspot.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. -- Equine Photography www.caughtinmotion.com http://brooksinthecountry.blogspot.com/ Ontario Canada -- 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: sigma 18-50 f2.8
On Tue, Feb 17, 2009 at 9:03 PM, Larry Colen l...@red4est.com wrote: Saw an ad on CL for a Sigma 18-50mm f/2.8 EX DC SLD ELD Aspherical Macro Lens for Pentax and Samsung Digital SLR Cameras (581109) I don't remember seeing much mention of this lens in the normal zoom discusions. What's it like? I am using the older, non-macro on a DS (as in Dark Side). It's a very good lens. Compact, light, sharp and behaving very well against strong backlight. The only thing I might miss is the HSM/whateversonic AF drive. The newer, macro version is said to be even better glass-wise. But I might be just lucky with my sample - I also have first hand experience with Sigma's inconsistent quality (recent example: the 50-150/2.8 plus a long story with Sigma's useless, rude and incompetent official dealer/importer/service center here in Poland ). tm -- 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: sigma 18-50 f2.8
Me to had the non macro version. I lost a lot of stuff at sea. This lens is not among the things I miss. Mine was a poor performer in almost every meaning of the word. Probable sample variations. Thenew macro version has a better reputation. -- MaritimTim 2009/2/18 Tomek Machnik tru...@gmail.com: On Tue, Feb 17, 2009 at 9:03 PM, Larry Colen l...@red4est.com wrote: Saw an ad on CL for a Sigma 18-50mm f/2.8 EX DC SLD ELD Aspherical Macro Lens for Pentax and Samsung Digital SLR Cameras (581109) I don't remember seeing much mention of this lens in the normal zoom discusions. What's it like? I am using the older, non-macro on a DS (as in Dark Side). It's a very good lens. Compact, light, sharp and behaving very well against strong backlight. The only thing I might miss is the HSM/whateversonic AF drive. The newer, macro version is said to be even better glass-wise. But I might be just lucky with my sample - I also have first hand experience with Sigma's inconsistent quality (recent example: the 50-150/2.8 plus a long story with Sigma's useless, rude and incompetent official dealer/importer/service center here in Poland ). tm -- 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: sigma 18-50 f2.8
David J Brooks wrote: On Tue, Feb 17, 2009 at 3:28 PM, Christian christ...@skofteland.net wrote: HA! I appreciate your feelings for Sigma which you've expressed here quite frequently. I've only owned one Sigma lens: the 300/4 AF, blah, blah, blah macro and it was actually a fan-bloody-tastic lens. Except for its lack of IS I'd say it was pretty close to my Canon 300/4 IS. I still have mine and i really like it. I've had two Sigma lenses in recent years. The EX 300/2.8 was excellent value for the money. The 180mm f/3.5 macro is, in terms of build quality and optical performance, one of the best lenses I've ever used. Period. -- 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: sigma 18-50 f2.8
Some Sigma lenses are quite good. When I've compared them against Pentax equivalents, though, the Pentax ones have proven better. One systematic problem is that Sigma lenses often seem to have more edge weakness than I like. I suspect that this is part of the design compromise that must be made to achieve a lower price. Joe -- 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: sigma 18-50 f2.8
common tradeoffs to achieve lower price are more distortion, lower build quality, more vignetting, more corner softness, lower quality control, etc etc, there are lots of ways to make a lens cheaper...Thats why I kinda have a fondness for the old days, when there was OEM, all as good as possible and third party, all cheaper and not as good. At least you knew what you were getting. Now you have pro level third parties all mixed in with consumer OEMs and the brand name doesnt mean as much. JC O'Connell hifis...@gate.net -Original Message- From: pdml-boun...@pdml.net [mailto:pdml-boun...@pdml.net] On Behalf Of Joseph Tainter Sent: Tuesday, February 17, 2009 10:48 PM To: pdml@pdml.net Subject: Re: sigma 18-50 f2.8 Some Sigma lenses are quite good. When I've compared them against Pentax equivalents, though, the Pentax ones have proven better. One systematic problem is that Sigma lenses often seem to have more edge weakness than I like. I suspect that this is part of the design compromise that must be made to achieve a lower price. Joe -- 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.
Sigma 18-50 f2.8 for APS-Sized Sensor
Adorama lists it at $499.00. They are honest enough this time to acknowledge that it will not be available until October. URL is: http://www.adorama.com/SG1850PXAF.html While Pentax sleeps, Sigma is bringing out an attractive line of lenses for DSLRs with APS-sized sensors. Pentax will wind up with less market share for lenses than they had before. If Sigma were to bring out a high-quality 50-150/200 f2.8 or 4.0 constant aperture zoom I would probably buy it. I hope, though, that Pentax does it first. Joe
Re: Sigma 18-50 f2.8 for APS-Sized Sensor
well, i wonder if Pentax isn't all wrapped up in the shipping delays at the ports. people have been mentioning delays of up to a month as normal now. Herb... - Original Message - From: Joseph Tainter [EMAIL PROTECTED] To: pdml [EMAIL PROTECTED] Sent: Tuesday, July 27, 2004 6:53 PM Subject: Sigma 18-50 f2.8 for APS-Sized Sensor While Pentax sleeps, Sigma is bringing out an attractive line of lenses for DSLRs with APS-sized sensors. Pentax will wind up with less market share for lenses than they had before.
