I picked it up for less than $10 some time ago I think.. finally used it... I bought it because it was such an odd focal length, and that one day I might like trimming some ATP or 80s into 110 etc. In any case, I made some crops from Rollei ATP with a Rodenstock 50mm and this lens.. at the same crop/print size, the Soligor seems noticeably sharper, (20x enlargement iirc), and asp at 30x enlargement (think it's 30x anyway), can start to see the grain on ATP at this size.. was just fiddling around out of curiosity. Anyone have more info on this lens? Funnily enough with the default light setup in the enlarger I was using it in, seems to cover 35mm wide open at smaller sizes, but with vignetting in the corners of the 35mm frame, but the circle is bigger. Stopped down may be alright for full frame printing.. larger sizes not sure, it projects off the base board.