ulven76000
New Member
I have recently acquired a 35/3.5 (marked 3.5 cm) Summaron for my M2. However, as opposed to my Elmar 50/2.8 and my Summicron 90/2.0, the frame seems not matched, i.e. when I mount the 35 mm, the frame contracts to the 50 mm size. Anyone who can shed light on this ?