Archived posting to the Leica Users Group, 2014/10/07
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Herb, The M body flange to film distance is 1 mm shorter than the LTM flange to film distance. The LTM to M adaptor is 1 mm thick. When the adaptor is screwed ?to the threads of an LTM lens the lens, for all intents and purposes it becomes an M lens. The focusing cams and mechanism work the same way on the M as they do on the LTM cameras. Leica released the M bodies before it had a sufficient supply of M lenses and, using this simple method of fitting the older lenses to the new bodies hoped to seduce LTM fans into buying a camera which was so different. It worked for me. I could fit all my old Leica lenses to my newly purchased M camera. Unfortunately for Leica I could also fit my Canon lenses and a few Nikon lenses to the Leica as well. In the 50s the Leica screw mount was the defacto standard for many removable 35 mm rangefinder lenses except for Contax and a few other odd balls.? Larry Z - - -? On 10/6/2014 7:38 PM, Herbert Kanner wrote: How does it arrange for rangefinder coupling? Herbert Kanner kanner at acm.org 650-326-8204 Question authority and the authorities will question you.