The Sigma MC-21 Canon EF Lens to L-mount Adapter allows you to use Sigma EF mount lenses on Panasonic Lumix DC-S1 and DC-S1R camera bodies. Key features include:

• Adapts Sigma EF lenses to Panasonic Lumix DC-S1 / DC-S1R cameras

• Electronic communication w/built-in autofocus in AF-S mode

• Powered by the camera body

• IS NOT compatible with Leica branded L-mount cameras!

Q & A

Does this adapter work with all L-mount cameras?

• No! This adapter only works with Panasonic L-mount cameras such as the Lumix DC-S1and DC-S1R, as well as the Sigma fp.

• It does not work with Leica’s own L-mount cameras. Yes, we know that’s not what was originally said and many sites still list. Yes, we know it’s super-shady; that’s why we are telling you in every section of our product page. No, it really really won’t work. Putting this adapter on any Leica L-mount camera causes a warning message to pop-up that cannot be bypassed.