Jupiter 9 and "green corners" in SD1
It is known the problem of "green corners" (especially in the Sigma SD1 camera) with old lenses. I have come to set a list of old lenses (Tamron Adaptall and M42) with the particular gravity of this problem in them, and I expected to find some correlation with the exit pupil of the lens (the higher this is pupil, less seems to be the problem.
There is an old lens, Jupiter 9 85mm f/2 which, I would like to purchase but I wonder if anyone has tried the Sigma SD1 camera and has the known problem of the green corners. A priori think not, since by construction presents a very wide exit pupil, but I'd like to get confirmation before buying it (you may well be investing save me ... )
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