paulcurtis
Well-known member
Paul, soviet M39 is for SLR, not for Leica rangefinders, so how would you adapt? If you just put Mir-1 on your Leica mount, you'll have only macro focusing ability.
All white ones and black Tair-3 300mm are M39. Only Mir-20 20mm is M42, and Mir-10A have that interchangeable backs which can be both M42 and M39. If a Soviet lens has "A" in its name that means it has swappable Adapter mount, it's like T-mount.
Ah, i understood M39 to be Leica screw mount, is this different then? Is the flange distance different?
EDIT, yes it is, i looked in more detail at the article below...
https://en.wikipedia.org/wiki/M39_lens_mount
To convert screw mount to normal Leica M mount is just a small adapter, the screw mount flange distance is greater than the M mount so no issues with adaptability. I have a bunch of M39 range finder lenses here.
It's the 20mm that was my first objective, i like wide lenses!
thanks
Paul