Leica M3 brand_Stearman Press autofocuses on any camera with

autofocuses on any camera with a screw drive

which doesn’t affect viewfinder function but will prevent other accessories from mounting to the top of the viewfinder

Don't buy this for your rangefinder

and it's got some heft

with approximately 3300k actuations

Leica M3 brand_Stearman Press autofocuses on any camera withThe classic Leica M3 is Leica's first M mount camera, and it's still one of the most usable "classic" cameras out there. This a very early double stroke model from 1955, and it's in very good condition: there is minor cosmetic surface wear from careful use and handling, a little bit of missing paint in the engraving, and a few light scratches on the top panel. Just CLA'd, with a clear rangefinder and accurate shutter speeds.