Originally Posted by Richard G
Ive used the 35 3.5 Summaron with the above adapter on my M2 and can't see how there could be a problem with the Elmar. You must have the correct adapter to enjoy the glorious M2 35mm frame lines, one of the best things you will see through any camera viewfinder.
the elmar's focusing arm lays very flat, near the base of the lens. as you approach infinity, the pin on the backside of the infinity lock actually protrudes into the area where the removed adapter material would be.
trust me, i speak from personal experience. haven't you ever wondered by that long notch/cut-out exists?