At the risk of resurrecting a well-trodden debate, I would like to open the floo r to anybody who has used both the Rodenstock Sironar S AND the Schneider Apo-Sy mmar IN THE SPECIFIC FOCAL LENTH OF 210MM,and ask: which of these two lenses in this particular focal lenth--if disernable--has superior resolution and sharpnes s? I am making 20x b/w enlargements, so it's not an insignificant question.
I have been told that the Sironar S is, across the board, a superlative lens lin e, but have also read that Schneider's Apo-Symmar in 210mm has been singled out as unusually fine, even in an already excellent lens family, to the point of att aining minor cult status in certain circles (in the same way I have read about R odenstock's Sironar S being so characterized in the focal length of 150mm). MTF data would be welcome, and--possibly--one approach... Can anybody help me?
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