Re: [Cameramakers] Re:Helicoid focus
It has been a long time since I lived in the USA and so I do not know all the possibilities to fulfill this suggestion, but here I see very cheap lenses for 35 mm cameras now and then. The condition may be bad, but if you want the mount and the glass is bad, who cares!!! There is a problem; these mounts may be rather long and may be badly suited to an extreme wide angle lens. You may even not be able to judge the true diameter of the hole you will have left after the glass is gone. Still, you do get the nice thread and maybe a lot more. With some imagination adapted to what you pick up you might be able to rescue enough of the real thing to solve your problem very efficiently. My guess is that an ancient WA has small diameter elements unless it was made for a pretty large format. If you find nothing at garage sales or flea markets, try begging! You local photo shop might offer you some junk too bad to sell and not worth fixing because it would never bring the cost of improvement. Get several, take them apart and select the one best suited for this problem and save the rest for other glass. Bob At 20:16 21.02.02 -0500, you wrote: Is there a hardware store item that I can use to focus my 100-year old extreme wide angle lens which I plan to use as a 5 X 7 point-n-shoot? Marty Hi to All: This is not really a hardware store item and is relatively more expensive but not prohibitively so The Pentax 6X7 helicoid extension tube which can be had for $100 + or - . Just make a lensboard to attach to the front of it ect. ect.-- scribe a focusing scale on it- ect. I have not done it, but think it very feasible! Regards, LARRY (nieland) ___ Cameramakers mailing list [EMAIL PROTECTED] http://rmp.opusis.com/mailman/listinfo/cameramakers ___ Cameramakers mailing list [EMAIL PROTECTED] http://rmp.opusis.com/mailman/listinfo/cameramakers
[Cameramakers] Test of Aero Ektar 178 mm
There is somebody offering an Aero Ektar at ebay http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItemitem=1334394605 I believe anybody who can read the German text might enjoy the information. Indeed, you can probably guess enough to make sense out of the numerical values even without reading German. I was amazed how good this lens is and the report might encourage some of you to grab the first one offered to you. After remounting in a shutter (or with a Packard), this lens ought to satisfy the needs of almost all doing 4x5 (9cmx12cm) on a shoestring. And how many of us can even find alternatives offering F2.5 for 4x5 format? What I also hope is that some reader of this group might have a source of the entire report from Hubble. The test results in all their detail would be nice to have and according to the ebay seller, the Hubble report compared various aerial lenses. You would be doing all of us a service if you could supply a copy of the report to anyone wanting it. I, for one would gladly pay a bit for a photocopy, postage and other costs of the person who can get hands on this document and distribute it. The sad news is that Surplus Shed does not currently have any to sell to you, but they will no doubt again appear. I am thankful to have mine, already, but now I am driven to remount it! Bob ___ Cameramakers mailing list [EMAIL PROTECTED] http://rmp.opusis.com/mailman/listinfo/cameramakers
Re: [Cameramakers] Test of Aero Ektar 178 mm
Hi All, Great info on the Aero Ektar. I've been looking for a deal on one of those for a while myself. Gonna be harder now. I am just putting the finishing touches on a 4x5 ( Man I'm slow) that uses Aero lenses. There are quire a few Aero lenses available right now. The Military is going digital in a big way, and most of the tactical recon stuff is going on the surplus market. A company called C H Sales in Pasadena has a lot of surplus Aero lenses as well as Surplus shack. Be warned though. These lenses are big! The three inch lens for my camera is absolutely amazing to look at but weighs 6 pounds! Still I have about $200 invested in lenses that cost the government about $100,000. Good ones are around by Kodak, Leitz Canada (Elcan), Bell and Howell, Pacific Optical, Fairchild, Perkin Elmer, Aerojet/Delft, and others.I will have pictures soon. Good luck Robert! Gene - Original Message - From: Robert Mueller [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Friday, February 22, 2002 3:55 AM Subject: [Cameramakers] Test of Aero Ektar 178 mm There is somebody offering an Aero Ektar at ebay http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItemitem=1334394605 I believe anybody who can read the German text might enjoy the information. Indeed, you can probably guess enough to make sense out of the numerical values even without reading German. I was amazed how good this lens is and the report might encourage some of you to grab the first one offered to you. After remounting in a shutter (or with a Packard), this lens ought to satisfy the needs of almost all doing 4x5 (9cmx12cm) on a shoestring. And how many of us can even find alternatives offering F2.5 for 4x5 format? What I also hope is that some reader of this group might have a source of the entire report from Hubble. The test results in all their detail would be nice to have and according to the ebay seller, the Hubble report compared various aerial lenses. You would be doing all of us a service if you could supply a copy of the report to anyone wanting it. I, for one would gladly pay a bit for a photocopy, postage and other costs of the person who can get hands on this document and distribute it. The sad news is that Surplus Shed does not currently have any to sell to you, but they will no doubt again appear. I am thankful to have mine, already, but now I am driven to remount it! Bob ___ Cameramakers mailing list [EMAIL PROTECTED] http://rmp.opusis.com/mailman/listinfo/cameramakers ___ Cameramakers mailing list [EMAIL PROTECTED] http://rmp.opusis.com/mailman/listinfo/cameramakers
[Cameramakers] $8 250mm f/5.6 copier lenses for 8x10 etc.
see http://dmapub.dma.org/~wagner/copyscop.htm http://www.aaa.org/articles/copyscope/ http://www.sciplus.com/category.cfm?section=6subsection=21 (used to have $10 copier lenses, also www.surplusshed.com?) http://www.mpja.com/product.asp?product=8800+LN $8 copier lens 250mm f/5.6 from my homebrew lenses pages at http://people.smu.edu/rmonagha/bronhb.html quote From: Don Norris [EMAIL PROTECTED] Newsgroups: rec.photo.equipment.large-format Subject: Re: Here's One for All of You Lens Experts ! Date: Wed, 11 Feb 1998 These hemi lenses are also found in discarded copy machines. I know of several photographers who have talked about doing something with them, but non who actually has. I do have one lens that is straight through from an even older copier. It is approx. 150mm, f8. I have used it to shoot copy work onto 8X10, even full spread newspaper, and found it to be sharp. unquote and quote: rom: [EMAIL PROTECTED] (Bart Z. Lederman) Newsgroups: rec.photo.equipment.35mm Subject: Re: Copier lens adapted for macro use? (green light) Date: 20 Nov 1998 There are actually a lot of different copier lenses floating around the used and suplus market. I've got one of the older ones, it came from one of the 'name brand' companies at the time (I think BL), and it's a normal lens, color corrected, and I think anti- reflection coated, 8 1/4 FL F/4.5, with adjustable f-stops. It was probably a production copy lens that was adapted to an early model photocopier, before the photocopier manufactuers had a production volume that justified custom-designed lenses (like the Fuji mirror lens described in a previous post). Also, most newer lenses don't have an adjustable iris. The catch is: it's designed essentially for 1:1 reproduction ratios, and for large format (8 1/2 x 11 or larger). If you're going to do copying near a 1:1 ratio on sheet film, one of these lenses can be a great buy. I've also used it as a portrait lens on 2 1/4 x 3 1/4, where a very slight soft focus wouldn't matter. As a telephoto lens on 35mm, it's only so-so. -- B. Z. Lederman Personal Opinions Only endquote quote: From: Norris [EMAIL PROTECTED] Newsgroups: rec.photo.equipment.large-format Subject: Re: Copier lenses Date: Thu, 06 May 1999 I have used old copier lenses - a Fuji and a no-name - to copy large paste-ups onto 8X10. The resulting contact prints were great! I shot a fully opened newspaper (two pages) as a test first, and it was sharp corner to corner, even with a 4X loupe. The lenses were mounted on mat board lens boards, and I used another piece of mat board for a shutter - I was shooting in a studio. endquote: considering these guys cost $10, cover 8x10 and even 11x17 (sized prints?) it would be hard to find cheaper and more available alternatives... hth bobm * Robert Monaghan POB752182 Southern Methodist University, Dallas Tx 75275 * * Third Party 35mm Lenses: http://people.smu.edu/rmonagha/third/index.html * * Medium Format Cameras: http://people.smu.edu/rmonagha/mf/index.html * ___ Cameramakers mailing list [EMAIL PROTECTED] http://rmp.opusis.com/mailman/listinfo/cameramakers
