Fotasy EFEX Exakta Lens to Canon EOS Camera Copper Adapter (Silver) Fotasy Pro Lens Adapter, allows Exacta Lens to be used on Canon EOS Camera Body Infinity remains unchanged, so the lens does not need to be re-collimated or shimmed. Material: Copper 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 Designed for Canon 6D, 5D Mark III II, 7D, 70D, 60D, 50D, 40D, 700D, 650D, 600D, 550D, 500D, 450D, 400D, 350D, Rebel T4i, T4, T3i, T3, T2i, T2, SL1s adapter