Lens adapter compatibility

Leica M lenses on Sony E-mount cameras

Can you use Leica M lenses on Sony E-mount cameras? Yes — and autofocus can work with the right electronic adapter. The Leica M flange distance is 27.80 mm and Sony E-mount is 18.00 mm, a difference of +9.80 mm.

+9.80 mm
Space for the adapter
27.80 mm
Leica M flange
18.00 mm
Sony E-mount flange
Verdict: Yes — a simple 9.8 mm adapter keeps infinity focus.

What to expect#

Electronic adapters: Techart LM-EA9 and similar adapters add a helicoid motor so M lenses can autofocus on Sony bodies.

Aperture control: these are mechanical lenses with aperture rings — set the aperture on the lens and shoot in aperture-priority or manual.

Focus: use focus peaking and magnification in the viewfinder. Exposure metering works normally because the camera meters through the lens at working aperture.

Leica M lenses you could adapt#

Sony E-mount cameras#

Other systems for Leica M lenses#

Canon RFNikon ZFujifilm X-mountMicro Four ThirdsL-MountCanon EF-MFujifilm G-mountHasselblad XCDNikon 1 (CX)Pentax Q

Frequently asked questions#

Will Leica M lenses autofocus on Sony E-mount?

Techart LM-EA9 and similar adapters add a helicoid motor so M lenses can autofocus on Sony bodies.

Does a Leica M to Sony E-mount adapter affect image quality?

A glass-free adapter is just a precisely machined spacer, so image quality is unchanged when it is built to the right thickness. Cheap adapters can be slightly too thin or thick, which shifts the infinity mark.

Last updated October 03, 2026 · How we calculate · Sources