Lens adapter compatibility

Leica M lenses on L-Mount cameras

Can you use Leica M lenses on L-Mount cameras? Yes, with a simple mechanical adapter (manual focus). The Leica M flange distance is 27.80 mm and L-Mount is 20.00 mm, a difference of +7.80 mm.

+7.80 mm
Space for the adapter
27.80 mm
Leica M flange
20.00 mm
L-Mount flange
Verdict: Yes — a simple 7.8 mm adapter keeps infinity focus.

What to expect#

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.

Other systems for Leica M lenses#

Frequently asked questions#

Will Leica M lenses autofocus on L-Mount?

No — adapted lenses are manual focus on this combination.

Does a Leica M to L-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