Quote Originally Posted by Xmas View Post
The M2s 35mm frame is closer to 40mm than 35mm, so many 40mm lenses have their lug filed to show the 35mm frame rather than 50mm. Leica changed the frame sizes for the M6 and later I think.

Cosina say the 35mm LTM and M have the same optic design.
My LTM was different in the lens coat color comparing to my M version. But on the B/W scans and prints they are equal.