RE: [pinhole-discussion] Pinhole Visions website
'cause email can be read off line.. what's wrong with having both? James has done a wonderful job with them. andy -Original Message- From: pinhole-discussion-admin@p at ??? [mailto:pinhole-discussion-admin@p at ???]On Behalf Of elrod...@cs.com Sent: Monday, February 24, 2003 5:56 PM To: pinhole-discussion@p at ??? Subject: Re: [pinhole-discussion] Pinhole Visions website Frankly, I don't know why folks want to use this e-mail list as much as they do when there is an excellent forum at Pinhole Visions. ElrodCod ___ Post to the list as PLAIN TEXT only - no HTML Pinhole-Discussion mailing list Pinhole-Discussion@p at ??? unsubscribe or change your account at http://www.???/discussion/
Re: [pinhole-discussion] Pinhole Visions website
I don't see the need for a forum, when we can discuss everything here. It is not like there is so much traffic here that discussion needs to be segmented... On Monday 24 February 2003 05:56 pm, elrod...@cs.com wrote: Frankly, I don't know why folks want to use this e-mail list as much as they do when there is an excellent forum at Pinhole Visions. ElrodCod ___ Post to the list as PLAIN TEXT only - no HTML Pinhole-Discussion mailing list Pinhole-Discussion@p at ??? unsubscribe or change your account at http://www.???/discussion/
RE: [pinhole-discussion] Home-brewed 7x17 update
Mike - Sounds like an interesting project. I'm looking forward to seeing images and pictures of the camera. It will embolden me to start a similar project. Cheers - george - http://GLSmyth.com http://DRiPInvesting.org --- On Mon 02/24, Michael Healy mjhe...@kcnet.com wrote: From: Michael Healy [mailto: mjhe...@kcnet.com] To: pinhole-discussion@p at ??? List-Post: pinhole-discussion@pinhole.com Date: Mon, 24 Feb 2003 09:13:12 -0700 Subject: [pinhole-discussion] Home-brewed 7x17 update A short while ago (mid-January?) I posted a few questions soliciting information so I could build my 7x17. I am very grateful for feedback I got, because it helped me push this project along at a satisfactory pace. Andy Schmitt expressed curiosity about it back then, so I thought that I would give him and any hardware geeks/voyeurs a quick note on my progress. I have completed two holders and a focusing screen holder, as well as the body, which is about 8H x 18W x 6L. On Saturday, the UPSP delivered my ground glass, so I'm very close to testing the camera. About all that stands in my way -- all, ha ha -- are several light leaks in the body and some rather serious light leaks in each film holder. Oh and wooden darkslides do NOT work AT ALL with this camera. But yesterday in Ace I found sheets of thin-gauge aluminum. I got one and cut it to size, and I think this is going to work fine. So I have to get some more of these, prime and paint, and I'm set, except for leaks. Also the pinhole may turn out to be a problem. I got a nice old Cronos shutter on eBay a few weeks ago. I cannot believe how COOL it looks on the black lensboard. The shutter is entirely black, with only hints of silver lettering. Regrettably its diameter is a mere 7/8, so the tunnel it makes does appear to produce vignetting. Either I have to live with this or russle up a bigger shutter, or just tape the pinhole to the front. Not the end of the world. That accolade goes to the dramatic light leakage in the film holders. But boy, the camera just won't look the same with a piece of aluminum foil taped to the front. Maybe I can hire someone to paint a trompe l'oeil shutter on it... I also have assembled fake BTZS developing tubes from ABS pipe. These should have been fun to make, but each one is about 24 long and 4 wide. Sanding and assembling on the patio over the last few days made me nervous. I kept expecting the FBI to show up, investigating reports of a guy preparing to launch ground-to-air missiles at a plane trying to land over in Phoenix. If they know about me, though, they're still only watching and updating my file. Today I am going to test a developing tube with six images of HP5 in 4x5. These occupy about the same area as a 7x17 sheet, so I should be able to achieve rudimentary tests of tube, developer, and film w/o going through half my supply of 7x17 film. When I finally use the camera, I intend to test it w/ printing paper first, again to avoid squandering the film. Hopefully this will be w/in a week or ten days. When it works, some of you might actually hear my scream. Anyhow, I will post again when it's done. I think I have plenty of time to get this up and running by Pinhole Day! Next I have to figure out a way to scan one of these suckers with an Epson 2450... Mike ___ Post to the list as PLAIN TEXT only - no HTML Pinhole-Discussion mailing list Pinhole-Discussion@p at ??? unsubscribe or change your account at http://www.???/discussion/ ___ No banners. No pop-ups. No kidding. Introducing My Way - http://www.myway.com
Re: [pinhole-discussion] Giant Bellows
Actually, I have one about that size (16x20 if I'm correct) tucked away in a cupboard, just waiting an occasion to be transformed into something. Andy, perhaps I should bring it over to Peter Valley for the pinhole workshop in August. More generally, my experience with large format pinhole (larger than 4x5) is that - unless it is absolutely imperative to use a bellows - one is better to build a camera with a fixed focal length and aperture, using black foamcore or light plywood. In effect, the only advantage of large bellows over fixed-format is that they give you the equivalent of a pinhole zoom. Against this, one must weight the fact that the camera will require the use of a turret to change the size of the pinhole diameter as the belows are extended or compressed . One also needs to have some sort of variable-length frame to hold the structure of the bellows in place (front, center and back) and to allow movement in the bellows, thus increasing the complexity and weight of the contraption. One also has to solve the problem of keeping the paper in place in a light tight structure that fits to the back of the bellows. If one has a large format back with film holders this is easy but I have yet to find one for a reasonable price when it comes to anything above 8x10 Of course, all these can be solved with imagination, some measure of manual dexterity and the appropriate tools (the last of which I tend to miss...). By comparison, all in all, my 20x24 pinhole cost me the price of two sheets of black foamcore plus blacktape, brass shim and the time to put it all together. This is not to downplay the use of large format bellows. I'd love to roam around with a giant-bellows pinhole camera. But this involves a level of complexity which is quite significant. BTW, I still need to build a changing bag - the size being sufficient to accomodate the box plus enough room to maneuver and change paper - so that I don't have to drive miles and miles back home every time I go out and take a 20x24 picture in the field... Suggestions welcome! Best regards, Guy - Original Message - From: andy schmitt aschm...@warwick.net To: pinhole-discussion@p at ??? Sent: Monday, February 24, 2003 9:59 AM Subject: RE: [pinhole-discussion] Giant Bellows ok Guy... I think we have to pass... but only if we get to see the final result.. ;*) andy -Original Message- From: pinhole-discussion-admin@p at ??? [mailto:pinhole-discussion-admin@p at ???]On Behalf Of Moodie, Jason Sent: Monday, February 24, 2003 9:34 AM To: pinhole-discussion@p at ??? Subject: RE: [pinhole-discussion] Giant Bellows If no one is interested in the bellows. I really am. My students are building a camera for their final project and bellows would be great to pick up instead of build on their own. I will just have to alter the size of the design I'm sure. Jason Moodie Sammamish High School Visual Arts Department 100 140th Ave SE Bellevue WA 98005 (425)456-7659 -- From: andy schmitt Reply To: pinhole-discussion@p at ??? Sent: Sunday, February 23, 2003 8:16 PM To: pinhole-discussion@p at ??? Subject: RE: [pinhole-discussion] Giant Bellows ow Guy... I think we have a project... andy -Original Message- From: pinhole-discussion-admin@p at ??? [mailto:pinhole-discussion-admin@p at ???]On Behalf Of James Kellar Sent: Friday, February 21, 2003 8:03 PM To: Pinhole Disscussion Group Subject: [pinhole-discussion] Giant Bellows I have a Giant Bellows that I tried to sell on ebay, but it seems that now one wants it. So if any one on the list can use it I will let it go for how ever much it cost to box it up and ship it. Below is the description I used on ebay, and if you want to see a photo of it goto, http://www.jameskellar.com/bellows.jpg. Up for Bid are Bellows from a copy camera. I believe that these are the biggest bellows that I have ever seen. The rear opening is 29 and front is 13. I was unable ot extend them fully, my guess is that will extend 6 to 8'. When I took the photo they were extended 4'. I believe that bellows are light tight, but I cannot guarantee it. Thanks James James Kellar Co-manager of the Pinhole Discussion List http://www.???/discussion/ pinh...@jameskellar.com http://www.jameskellar.com ___ Post to the list as PLAIN TEXT only - no HTML Pinhole-Discussion mailing list Pinhole-Discussion@p at ??? unsubscribe or change your account at http://www.???/discussion/ ___ Post to the list as PLAIN TEXT only - no HTML Pinhole-Discussion mailing list Pinhole-Discussion@p at ??? unsubscribe or change your account at http://www.???/discussion/ ___ Post to the list as PLAIN TEXT only - no HTML
[pinhole-discussion] Re: resolution vs diffraction vs format question
Light from any single point of the subject passes through the pinhole and falls only at one location on the film... The image of each point of the subject is not a true point, but a small circle or disc. The complete image is made up of thse overlapping circles falling on the film from all the points of the subject. a.k.a. the circles of confusion. always liked that phrase...
[pinhole-discussion] Home-brewed 7x17 update
A short while ago (mid-January?) I posted a few questions soliciting information so I could build my 7x17. I am very grateful for feedback I got, because it helped me push this project along at a satisfactory pace. Andy Schmitt expressed curiosity about it back then, so I thought that I would give him and any hardware geeks/voyeurs a quick note on my progress. I have completed two holders and a focusing screen holder, as well as the body, which is about 8H x 18W x 6L. On Saturday, the UPSP delivered my ground glass, so I'm very close to testing the camera. About all that stands in my way -- all, ha ha -- are several light leaks in the body and some rather serious light leaks in each film holder. Oh and wooden darkslides do NOT work AT ALL with this camera. But yesterday in Ace I found sheets of thin-gauge aluminum. I got one and cut it to size, and I think this is going to work fine. So I have to get some more of these, prime and paint, and I'm set, except for leaks. Also the pinhole may turn out to be a problem. I got a nice old Cronos shutter on eBay a few weeks ago. I cannot believe how COOL it looks on the black lensboard. The shutter is entirely black, with only hints of silver lettering. Regrettably its diameter is a mere 7/8, so the tunnel it makes does appear to produce vignetting. Either I have to live with this or russle up a bigger shutter, or just tape the pinhole to the front. Not the end of the world. That accolade goes to the dramatic light leakage in the film holders. But boy, the camera just won't look the same with a piece of aluminum foil taped to the front. Maybe I can hire someone to paint a trompe l'oeil shutter on it... I also have assembled fake BTZS developing tubes from ABS pipe. These should have been fun to make, but each one is about 24 long and 4 wide. Sanding and assembling on the patio over the last few days made me nervous. I kept expecting the FBI to show up, investigating reports of a guy preparing to launch ground-to-air missiles at a plane trying to land over in Phoenix. If they know about me, though, they're still only watching and updating my file. Today I am going to test a developing tube with six images of HP5 in 4x5. These occupy about the same area as a 7x17 sheet, so I should be able to achieve rudimentary tests of tube, developer, and film w/o going through half my supply of 7x17 film. When I finally use the camera, I intend to test it w/ printing paper first, again to avoid squandering the film. Hopefully this will be w/in a week or ten days. When it works, some of you might actually hear my scream. Anyhow, I will post again when it's done. I think I have plenty of time to get this up and running by Pinhole Day! Next I have to figure out a way to scan one of these suckers with an Epson 2450... Mike
RE: [pinhole-discussion] Giant Bellows
You got it. I will post the final camera for all to see. Jason -- From: andy schmitt Reply To: pinhole-discussion@p at ??? Sent: Monday, February 24, 2003 6:59 AM To: pinhole-discussion@p at ??? Subject: RE: [pinhole-discussion] Giant Bellows ok Guy... I think we have to pass... but only if we get to see the final result.. ;*) andy -Original Message- From: pinhole-discussion-admin@p at ??? [mailto:pinhole-discussion-admin@p at ???]On Behalf Of Moodie, Jason Sent: Monday, February 24, 2003 9:34 AM To: pinhole-discussion@p at ??? Subject: RE: [pinhole-discussion] Giant Bellows If no one is interested in the bellows. I really am. My students are building a camera for their final project and bellows would be great to pick up instead of build on their own. I will just have to alter the size of the design I'm sure. Jason Moodie Sammamish High School Visual Arts Department 100 140th Ave SE Bellevue WA 98005 (425)456-7659 -- From: andy schmitt Reply To: pinhole-discussion@p at ??? Sent: Sunday, February 23, 2003 8:16 PM To: pinhole-discussion@p at ??? Subject:RE: [pinhole-discussion] Giant Bellows ow Guy... I think we have a project... andy -Original Message- From: pinhole-discussion-admin@p at ??? [mailto:pinhole-discussion-admin@p at ???]On Behalf Of James Kellar Sent: Friday, February 21, 2003 8:03 PM To: Pinhole Disscussion Group Subject: [pinhole-discussion] Giant Bellows I have a Giant Bellows that I tried to sell on ebay, but it seems that now one wants it. So if any one on the list can use it I will let it go for how ever much it cost to box it up and ship it. Below is the description I used on ebay, and if you want to see a photo of it goto, http://www.jameskellar.com/bellows.jpg. Up for Bid are Bellows from a copy camera. I believe that these are the biggest bellows that I have ever seen. The rear opening is 29 and front is 13. I was unable ot extend them fully, my guess is that will extend 6 to 8'. When I took the photo they were extended 4'. I believe that bellows are light tight, but I cannot guarantee it. Thanks James James Kellar Co-manager of the Pinhole Discussion List http://www.???/discussion/ pinh...@jameskellar.com http://www.jameskellar.com ___ Post to the list as PLAIN TEXT only - no HTML Pinhole-Discussion mailing list Pinhole-Discussion@p at ??? unsubscribe or change your account at http://www.???/discussion/ ___ Post to the list as PLAIN TEXT only - no HTML Pinhole-Discussion mailing list Pinhole-Discussion@p at ??? unsubscribe or change your account at http://www.???/discussion/ ___ Post to the list as PLAIN TEXT only - no HTML Pinhole-Discussion mailing list Pinhole-Discussion@p at ??? unsubscribe or change your account at http://www.???/discussion/ ___ Post to the list as PLAIN TEXT only - no HTML Pinhole-Discussion mailing list Pinhole-Discussion@p at ??? unsubscribe or change your account at http://www.???/discussion/
RE: [pinhole-discussion] Giant Bellows
ok Guy... I think we have to pass... but only if we get to see the final result.. ;*) andy -Original Message- From: pinhole-discussion-admin@p at ??? [mailto:pinhole-discussion-admin@p at ???]On Behalf Of Moodie, Jason Sent: Monday, February 24, 2003 9:34 AM To: pinhole-discussion@p at ??? Subject: RE: [pinhole-discussion] Giant Bellows If no one is interested in the bellows. I really am. My students are building a camera for their final project and bellows would be great to pick up instead of build on their own. I will just have to alter the size of the design I'm sure. Jason Moodie Sammamish High School Visual Arts Department 100 140th Ave SE Bellevue WA 98005 (425)456-7659 -- From: andy schmitt Reply To: pinhole-discussion@p at ??? Sent: Sunday, February 23, 2003 8:16 PM To: pinhole-discussion@p at ??? Subject: RE: [pinhole-discussion] Giant Bellows ow Guy... I think we have a project... andy -Original Message- From: pinhole-discussion-admin@p at ??? [mailto:pinhole-discussion-admin@p at ???]On Behalf Of James Kellar Sent: Friday, February 21, 2003 8:03 PM To: Pinhole Disscussion Group Subject: [pinhole-discussion] Giant Bellows I have a Giant Bellows that I tried to sell on ebay, but it seems that now one wants it. So if any one on the list can use it I will let it go for how ever much it cost to box it up and ship it. Below is the description I used on ebay, and if you want to see a photo of it goto, http://www.jameskellar.com/bellows.jpg. Up for Bid are Bellows from a copy camera. I believe that these are the biggest bellows that I have ever seen. The rear opening is 29 and front is 13. I was unable ot extend them fully, my guess is that will extend 6 to 8'. When I took the photo they were extended 4'. I believe that bellows are light tight, but I cannot guarantee it. Thanks James James Kellar Co-manager of the Pinhole Discussion List http://www.???/discussion/ pinh...@jameskellar.com http://www.jameskellar.com ___ Post to the list as PLAIN TEXT only - no HTML Pinhole-Discussion mailing list Pinhole-Discussion@p at ??? unsubscribe or change your account at http://www.???/discussion/ ___ Post to the list as PLAIN TEXT only - no HTML Pinhole-Discussion mailing list Pinhole-Discussion@p at ??? unsubscribe or change your account at http://www.???/discussion/ ___ Post to the list as PLAIN TEXT only - no HTML Pinhole-Discussion mailing list Pinhole-Discussion@p at ??? unsubscribe or change your account at http://www.???/discussion/
RE: [pinhole-discussion] world pinhole day in Seattle, WA, USA?
Philip, my students will have their camera made and be taking pictures on the 25th and the 28th- (I'm not working on the weekend). If you are interested in dropping by the school I would love to have a guest. Jason Moodie Sammamish High School Visual Arts Department 100 140th Ave SE Bellevue WA 98005 (425)456-7659 -- From: Philip willarney Reply To: pinhole-discussion@p at ??? Sent: Saturday, February 22, 2003 9:27 PM To: pinhole-discussion@p at ??? Subject: [pinhole-discussion] world pinhole day in Seattle, WA, USA? Just curious -- anyone feel like getting together to do something pinhole related on world pinhole day in or near Seattle, WA, USA? Let me know off-list if so. pwillar...@yahoo.com __ Do you Yahoo!? Yahoo! Tax Center - forms, calculators, tips, more http://taxes.yahoo.com/ ___ Post to the list as PLAIN TEXT only - no HTML Pinhole-Discussion mailing list Pinhole-Discussion@p at ??? unsubscribe or change your account at http://www.???/discussion/
