Csacwp Posted March 6, 2017 Share #1 Posted March 6, 2017 Advertisement (gone after registration) The 100mm Summicron S is an incredible lens. I'm wondering what M-compatible lens is most similar to it? Maybe the Noctilux 0.95 or 1.0, or the 80mm Summilux R? Remember that the 100mm S lens is actually an 80mm with the medium format sensor. Quote Link to post Share on other sites More sharing options...
Advertisement Posted March 6, 2017 Posted March 6, 2017 Hi Csacwp, Take a look here Lens similar to the 100mm Summicron S. I'm sure you'll find what you were looking for!
adan Posted March 8, 2017 Share #2 Posted March 8, 2017 A bit difficult to compare lenses across different formats. And with so many factors that give any lens its character. In gross character (apparent perspective, amount/quality of background blur - stuff you can see in a 600x400-pixel image) the 80mm R or its very close cousin the 75mm Summilux-M will approximate the 100 S. In the fine details wide-open (judging from larger online pix with the 100-S - I don't have the S system) I think a 100-S lover might be rather disappointed with the slightly soft details, lower contrast, greener tint, and color aberrations (color fringing) with those close-to-40-year-old designs @ f/1.4. Peter Karbe, designer of the 100 S, said the 75M (and thus the 80R, by association) is "his least favorite Leica lens." I suspect the Karbe-designed 75mm APO-Summicron-M f/2 would be most like the 100S - still very crisp and sharp closeup at f/2 (thanks to a floating element and ASPH elements, which the 100S also uses), with more modern Leica Germany color compared to the Mandler Canadian glass of 4 decades past. But with a shorter focal length on a smaller format, probably some differences in amount of background blur. Which is not to say the old lenses are not very desirable and beautiful in their own way - I just got rid of a 75 APO and replaced it with a Mandler-era 90 f/2, for use on the M10. Because it better fits with my other c.1980 lenses' look (non-ASPH 35 f/2 and 21 f/2.8). But it is no 100S, either. 1 Quote Link to post Share on other sites More sharing options...
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