K&F Concept Lens Mount Adapter Compatible with Tamron Adaptall II Lens to Canon EOS Camera Body Fits Tamron Adaptall I / II Classic Manual Lens. Please note it doesn't fit Tamron AF lens. Compatible with Canon EOS 6D 5D Mark III II 7D 60D 50D 40D 700D 650D 600D 550D 500D 450D 400D 350D Rebel T5i T4i T4 T3i T3 T2i T2 etc. There is no electrical contacts in the adapter ring, exposure and focus has to be adjusted manually. (Please note it only support M mode) Smooth surface for effortless mount, fine made to be light weight and strong, or effortless mount, fine made to be light weight and strong. Please note: Infinity focus positionthe position of the infinity mark of the telephoto lens or super telephoto lens is shifted slightly to the positive side to enable focus adjustment even when focus shift is caused due to temperature changes.The shift range is denoted by an L-shaped line, Be sure to check the focus through the viewfinder even when you shoot at infinity.