Fotasy Canon EOS EF Mount Lens to Sony A7, A7 II, A7 III, A7R, A7R II, A7R III, A7S, A7S II, A7S III Full Frame Mirrorless Camera Adapter This adapter allows you to use Canon EOS EF Mount Lens to fit on Sony A7II A7S A7R II Mirror less Camera Infinity remains unchanged, so the lens does not need to be re-collimated or Shimmed. When using a lens with the Adapter, The camera body should be set to either manual exposure or aperture priority mode. There is no electrical Compatible with: Sony A7, A7 II, A7 III, A7R, A7R II, A7R III, A7S, A7S II, A7S III Full Frame Mirrorless Cameras and new models.