K&F Concept Lens Mount Adapter FD to NEX For Canon FD FL Lens to Sony NEX E-Mount Camera for Sony Alpha NEX-7 NEX-6 NEX-5N NEX-5 NEX-C3 NEX-3 Made of brass and aluminum (not plastic), anodized aluminum construction. Smooth surface for effortless mount,infinity focus allowed, diaphragm control of the lens is set manually. Please note: It is not same between Canon FD mount and EF mount, this fd to nex adapter ring is only for Canon FD mount lens, please contact us if you want to purchase for Canon EF mount lens. 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.