Take this with a grain of salt cause I'm going off purely anecdotal evidence, but how about a Schneider-Kreuznach 180mm Symmar convertible?
I've heard that this symmetrical and relatively simple design keeps a very flat field and I'm guessing(?) it might cover 8x10" at macro. It's suggested for 5x7" as a normal lens.
Not symmetrical, no simpler than any other 6/4 plasmat, and not particularly good close up.
The OP asked an unanswerable question and ran away. Unanswerable because without knowing the range of magnifications he wants to work at we can't know how much coverage is needed. He didn't even say why he wanted a 180.
I wanted a 180mm for close up work on a copy stand. It may not always be macro work, but all will be done at much close than infinity. I can not afford a 180 specifically designed for macro, so I was wondering which 180mm would work best for close up work. I believe I also would want it to be multicoated as the lights I am using are bright and often at either side of the lens..... if someone thinks a single coated lens would not be affected by such a lighting situation please feel to let me know and I may feel good about getting a g-claron. I am also considering a 210mm.
I have hundreds of objects about 1-3 inches in height that I would like to see large on 8x10 sheet film.
Bob, there's a rule of thumb to the effect of "the higher the magnification, the shorter the lens." This because, for a given focal length the higher the magnification, the more extension needed. How much ya got?
4 racers
Made with a 9" petzval type. My strange depth of field requirements are not the norm, nor for everybody, but just to point out that with this type of photography bellows extension and stability is really more the problem to solve than which lens. In this case I've used an ancient studio camera with 8X10 back (this may have actually been 5X7!) and a rolling stand with table top for the camera. Stable stable stable, and 36" of bellows to play with, that will not sag.
I also always tell people to start with the ordinary 150mm Componon that's already on the enlarger. Turn it around backwards. Yes, matilda, at the extensions you'll need for 3X it'll cover 8X10 very nicely, and it'll be operating within it's design parameters.
I have 36 inch of workable bellows ... I am using an old century camera with no shutter, its light tight as I have gone through a few boxes of film as late as last sunday.
Hi Dan,So the longest lens you can use is 9" and a bit shorter would probably be better.
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