Archived posting to the Leica Users Group, 1996/11/02
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Lens quality - I've never put my 2 cents in on this one but today's posting was the 'straw...' Someone was responding to the question of another as to whether the current 90/2.8 was an improvement over the older 90/2.8. On the one side of these issues we have the folks with the test charts on their basement walls and on the other we have the warm fuzzy folks who see a certain 'glow.' I read somewhere many years ago that lens resolution quality was far beyond that of current films. This is still probably true. Last year I shot a scene (architecture) with a 1939 (coated) Summar on a IIIF and TMY. The camera was on a tripod. Paying attention to the issue of circles of confusion, I stopped my lens down two stops beyond the depth of field I was looking for in the image so I would achieve critical sharpness (theoretically) up to 16X20. The image was enlarged through a tremendous German optic. I was amazed by the image quality - stunning. A different quality, I will admit, than if I used my current 50 - but sharp and of sufficient contrast. More recently, I took a shot out of the hole in a Piper airplane with my 1979 vintage 90 Summicron at a moderate aperture. The image is so sharp I can't believe it came from 35mm (until I look at the T-Max 400 grain). Point is, so much of what people are looking for is already in the lenses they own or other older optics they might consider. Too much emphasis seems to be placed either on theoretical limits of an optic or on some kind of 'glow,' neither of which am I able to exceed. Too little time or emphasis ever seems to be placed on photographic technique (maybe that's a different list). Too little time is spent discussing practical application of theoretical (e.g. depth of field) arguments which make for good imagemaking. Too little time is spent extolling the virtues of tripods (full or the little Leica ones) as the single most important device for achieving top image quality. My dad stuck his 12th ed. Leica Manual in my hand when I was still a young boy in the '50s and '60s and said 'read.' He never spoke of any 'glow' from his Leica or Zeiss glass. He never shot wall charts. He just used the stuff he had and applied the best knowledge of technique he could. I've been reading and doing the same for well over 30 years and, quite frankly, all the issues about lens testing, glow, et al seem rather arcane and senseless. This glass is as good as it needs to be and always was. And, no, I don't think I'm missing something here that only someone else could understand. Load some film and shoot, my friends. Curt Elizabeth Mei Wong Henry Curtis Miller, M.P.A. Christopher P.E. Miller Pittsfield, Massachusetts In the Berkshires, next door to Tanglewood