K&F Concept Lens Mount Adapter Compatible with Canon EOS Lens to Sony Alpha Nex E-mount Camera Body,fits for Sony NEX-3, NEX-5, NEX-5N, NEX-7, NEX-7N, NEX-C3, NEX-F3 Smooth surface for effortless mount,infinity focus allowed. Made of brass and aluminum (not plastic), anodized aluminum construction.Diaphragm control of the lens is set manually. Compatible Cameras (Including, but not limited to): Sony NEX-3 NEX-3C NEX-3N NEX-5 NEX-5C NEX-5N NEX-5R NEX5T NEX6 NEX7 NEX-F3 a6000 a5000 a3500 a3000 Alpha A7 A7R NEX-VG10 VG20 etc NOTE: This adapter will NOT fit on the Sony a7S, a7 II, a7S II, and a7R II. 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. As Canon's EOS lenses are electronically controlledmost Canon EF mount lenses do not feature a manual aperture ringso when used on our canon to sony adapter, which is a full manual operation adapter ring, the aperture could not be transfered to the camera, it will stop down to its smallest f/stop by default.