frank_menesdorfer Posted April 15, 2006 Share Posted April 15, 2006 So! HI! All of you good people out there whom eating all that calory rich food during this holydays and while you doing so you probobly have a lot's of time off too (hopefully) so you might consider to think and try to help me out here!:):) I almost thought that I have a lens to my new big camera project but it was when my happiness was at early stage and then things turned out to be ruff, but it's okay now, I almost got over it, but I can tell you that much that I'm not that happy about it! :) So what I really need is some tip about lenses which has a "REAL" image circle a bit over 800mm which I need to cover an a negative size 40x50 cm in Eropean terms! (15x19 in yours) also it should work as a normanl or slightly WA on this size and of course it's good if I can or it's possible to mount this lens in shutter! As I said before Happy Eastern to all of you worldwide! Yuors Frankie! Link to comment Share on other sites More sharing options...
michael_briggs2 Posted April 15, 2006 Share Posted April 15, 2006 I'd say that the "English" standard nominal equivalent is 16x20. The diagonal of 40x50 cm is 64 cm, so it sounds like you want a lens of 640 mm, or somewhat shorter, say perhaps down to 450 mm ? On the short focal length end, asking for an image circle of 800 mm is asking for a lot. There is even a currently manufacturered lens that meets your specs: the Schneider Fine Art 550 f11 XXL in Copal 3. Schneider rates the image circle as 900 mm diameter. But it ain't cheap. (But they will engrave your name on the lens for "free", meaning that this service is included in the price of the lens.) See http://www.schneideroptics.com/photography/large_format_lenses/xxl/ You can dig through the old catalogs for lenses such as Dagors and Protars. These old lenses are fetching high prices, but which maybe won't look insane compared to the Schneider Fine Art Lenses. Then take a look at the archive to the right, under such categories as "ULF", "Lenses: classic" and "Lenses". Link to comment Share on other sites More sharing options...
pico_digoliardi Posted April 15, 2006 Share Posted April 15, 2006 Something like this guy's? http://elearning.winona.edu/jjs/tmp.jpg 20" Voigtlander I think (not sure) it is a #7. If there's a #8, I want it! Link to comment Share on other sites More sharing options...
frank_menesdorfer Posted April 15, 2006 Author Share Posted April 15, 2006 Sorry Michael I made a mistake earlier today! (was to early in the morning I been at the party last night) That is 50x60 cm that's why I'm looking for the lens which cover 800mm! so it's a 19x23" we are talking about! Or something like that! By the way my hadache has gone! Yes I know about Schneider and it's a nice piece of glas but I closed my eyes when the price tug come up! :) Link to comment Share on other sites More sharing options...
frank_menesdorfer Posted April 15, 2006 Author Share Posted April 15, 2006 Hi Pico! It sure look like a voightlander? Is that yours? Nice polishig job anyway isn't it? Link to comment Share on other sites More sharing options...
emile_de_leon9 Posted April 16, 2006 Share Posted April 16, 2006 450mm Nikon f9 M, 600mm Fuji C. Long protar V's f 18 if you can find them(275 mm and up). Best, Emile/www.deleon-ulf.com Link to comment Share on other sites More sharing options...
frank_menesdorfer Posted April 16, 2006 Author Share Posted April 16, 2006 Hello Emilie! Are you sure that those lenses cover the entire 800 mm image cirle? As I had a little problem to concetrate myself after all the party's around Eastern and given the size wich actually smaller that I was asking about! It's a 50x60 cm neg size and I would like to have something which is a normal or a slightly WA on that size! Also it should be possible to mount the lens in shutter! Thanks Frankie! Link to comment Share on other sites More sharing options...
kelly_flanigan1 Posted April 16, 2006 Share Posted April 16, 2006 A surplus long Apo Ronar process lens will probably be in barrel. A 800mm F9 at Apo Ronar at F22 will is spec'ed to cover a 18x23 inch plate at 1:10 ; often taken to about the same as infinity coverage. Usually on a process camera these are used:<BR><BR>at 1:1, for a 32x45 inch coverage at F22; or<BR><BR> at 1:2 for a 24x34 inch coverage at F22,<BR><BR> or at 1:5 for a 20x26 inch coverage at F22.<BR><BR>With our little 5 meter long process camera there is a rotating sector shutter behind the lens mounting plate that is opened first; then the exposure is done timed lights. A 890mm F9 Apo Nikkor is spec'd as having a 750mm image circle in the graphics arts catalog for a 1:10 ratio. the 890mm F12.5 Red dot artar is spec'd as having a 20x24" coverage at 1:10 both at F22<BR><BR>Here is the mid sized 600mm lens on the camera, our longer lens is a 890mm F9 Apo ronar, the shorter ones are the 480 and 360mm Apo Ronars.<BR><BR>There are also some older Zeiss and B&L and Kodak super long process lenses that are on the surplus market awaiting new homes.<BR><BR><img src="http://d6d2h4gfvy8t8.cloudfront.net/1238404-lg.jpg"> Link to comment Share on other sites More sharing options...
frank_menesdorfer Posted April 16, 2006 Author Share Posted April 16, 2006 Thanks Kelly! A couple of questions! What that dollar bill got to do with the camera! Is that symbolic and ralated to how much this thing cost or it's got some other value? So this lenses well hardly possible to mount into shutters isn't it? Or do I have any chanses to do that? Does those other lenses you mentioned cover your size in infinity or you just use it as lenses for shoter distances? Clouse ups or? frankie! Link to comment Share on other sites More sharing options...
kelly_flanigan1 Posted April 16, 2006 Share Posted April 16, 2006 The bill is added to show scale, ie how huge the camera is. The camera's back is built into the building. You load the film in another room. The 600mm lens shown wont cover 24x36" even at unity 1:1, but is close. ther 890mm lens is used for our larger work. <BR><BR>A "rule of thumb" is if a lens covers an image circle of XXX millimeter at 1:1; it covers about ONE HALF this size at infinity. Thus a lens that covers 800mm at 1:1 will roughly cover 400mm at infinity. Be carefull, many process lenses are not spec'd at infinity, but at close ratios. Link to comment Share on other sites More sharing options...
frank_menesdorfer Posted April 16, 2006 Author Share Posted April 16, 2006 Okay Kelly I would be carefull I promise you as I need only one lens and it's got to be the right lens! That's why I went out earlier with the nikkor-q because I didn't know what the lens actually covered! But the 800 image circle actually are 400 at infinity! I have a 45 cm Goerz red dot artar too! Do you know what that one would cover at infinity? The other thing is I'm going to build this camera for field uses and I only want to have one lens to it! Of course I'm not planning to claim to the Everest with it :):) but I figure I might just manage walk at the forest a mile or så! I hate to photograph from highways!:):) So the lens should be normal to this size or just a little bit under like a sligtly WA lens! I don't even care about the shutter any longer howewer I prefer to have one! Now my next question is this! Who made this camera? Is it you or is't a factory made? And of course I wonder what do you use it for? Portraits or still life as I assume you don't gone out to the forest with the whole building! :):) Do you? At the same time I have decided that I'm going to help all ULF with film as I have a very good connection with Forte and they cut any size for me I want to for a very competitive price too!. So if anyone intrested in it please get my E-mail address and let's talk! Frankie! Link to comment Share on other sites More sharing options...
vivek iyer Posted April 16, 2006 Share Posted April 16, 2006 Dagor77 has a 1000mm APO Ronar L lens for sale. Check eBay. Link to comment Share on other sites More sharing options...
frank_menesdorfer Posted April 16, 2006 Author Share Posted April 16, 2006 Thanks Vivek I'm going to check it out right away! Frankie! Link to comment Share on other sites More sharing options...
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