Hello.

I want to buy two Schneider on the used market, the 100mm and the 210mm. I would like to know from some experienced owners how big are the differences in sharpn ess and contrast between the Symmar-S and the Apo Symmar. I shot landscapes with a Toyo field, mostly 6x7 and 6x9 (but also 4x5 with a Quickload holder). I use only the Velvia film.