Leica M
For Leica M, flange focal distance (mm) is disputed: 27.95 per graphics.cornell.edu, 27.8 per allphotolenses.com; mount type is disputed: bayonet per graphics.cornell.edu, Rangefinder 35mm camera per allphotolenses.com; throat diameter (mm) is 44, verified against its source on 2026-08-13.
- Mount name
- Leica M verified
- Flange focal distance (mm)
- 27.95 sources disagree
- Mount type
- bayonet sources disagree
- Throat diameter (mm)
- 44 verified
What the source says
Leica M | bayonet | 27.95 | 44 |
— graphics.cornell.edu, retrieved 2026-08-13
Sources disagree
More than one authority states this, and they do not state the same thing. Both are reproduced with the source each came from — deciding between them is yours, not ours.
Flange focal distance (mm)
graphics.cornell.edu says flange focal distance (mm) is 27.95, as of 2026-08-13.
Leica M | bayonet | 27.95 | 44 |
https://www.graphics.cornell.edu/~westin/misc/mounts-by-register.html
allphotolenses.com says flange focal distance (mm) is 27.8, as of 2026-08-13.
Leica M | 27.8 | Rangefinder 35mm camera
https://allphotolenses.com/articles/item/c_6.html
Mount type
graphics.cornell.edu says mount type is bayonet, as of 2026-08-13.
Leica M | bayonet | 27.95 | 44 |
https://www.graphics.cornell.edu/~westin/misc/mounts-by-register.html
allphotolenses.com says mount type is Rangefinder 35mm camera, as of 2026-08-13.
Leica M | 27.8 | Rangefinder 35mm camera
Sources
- graphics.cornell.eduhttps://www.graphics.cornell.edu/~westin/misc/mounts-by-register.html
- allphotolenses.comhttps://allphotolenses.com/articles/item/c_6.html