Fotasy F3EF Pro Canon EOS EF/EF-S Lens to Sony FZ Mount Camcorder Camera Adapter for PMW-F3, PMW-F5, PMW-F55, PMW-F65 (Black) Adapts Lenses with Canon EF/EF-S Mount Mounts on Cameras with Sony FZ Mount, such as PMW-F3 PMW-F5 PMW-F55 PMW-F65 Maintains Infinity Focus on Lens There is no electrical contacts in the adapter ring. Exposure and focus has to be adjusted manually. Automatic diaphragm, auto-focusing, or any other functions will not operated with using this adapter Brass construction protects lens mount, stainless steel finish.