Hi all,

I got myself old summar 50/f2 screw mount for my leica. Glases are clean from scraches and fungus, couple of dust inside, no big deal. But after testing it - I see that something is wrong. Please see attached pictures, they are shoot at f5.6-f8, 1/100s on M3 with adapter, focus on infinity.

It is not development of camera problem because I shoot some frames on same film with elmar 5cm/3.5 and with industar 5cm/3.5 on same adapter and all is ok. Only summar has those not acceptable results. Same is on close focus, wide open, all settings are giving bad results.