Leica M lenses on Sony E

9.8 mm flange clearance manual only

Does a Leica M lens fit a Sony E body?

Yes, with a simple adapter and no loss of image quality. Leica M has a flange focal distance of 27.8 mm and Sony E has 18.0 mm, leaving 9.8 mm for the adapter to occupy. Because the adapter contains no glass, the lens performs exactly as it does on its native mount.

Autofocus: Manual focus only

Purely mechanical, so it always works — there is nothing to go wrong electronically. Focus and aperture are manual and no EXIF is recorded. The known optical problem is that wide-angle M lenses project light at a steep angle onto a sensor stack designed for telecentric lenses, producing smeared corners and colour casts on wides.

Adapters

• Voigtländer VM-E Close Focus Adapter — Cosina Voigtländer (mechanical, no glass)
• K&F Concept M-NEX — K&F Concept (mechanical, no glass)

Flange focal distances: Leica M 27.8 mm, Sony E 18.0 mm.