This adapter is not compatible with Canon full-frame cameras and 650D, 700D. Although the lens will fit physically, automatic diaphragm, auto-focusing, or any other functions will not operate correctly when using this adapter. In this case, since the lens does not have the ability to have its aperture controlled by the camera body. You can shoot with manual mode or aperture priority mode. For this \"tumAF\" adapter, it does not mean you can use autofocus, it only has an indication (bi-sound) when you manually focus actually. For Nikon F AI AIS Lens to Canon EOS EF 5D 7D 600D DC192. This amazing adapter can make Canon EOS cameras work with a variety of accessories. It allows the Canon EOS owner to broaden the scope of photography they undertake. With AF confirm chip. EXIF is fixed. 50mm f1.4. Supports AV (Aperture Priority) and Manual Mode. Fix a focus error on EOS 60D, 550D, 7D and reprinted contacts. Allows Nikon AI AF mount lenses to be used on Canon EOS EF camera bodies. It's an aperture pin down flange version. It is possible to use macro rings and other accessories. It can focus infinitely. Material: Chrome-plated brass. Color: silver. To mount: Attach the adapter to the Nikon lens and then mount them to the camera. To remove: Remove both lens/adapter together from the camera, then press the lens lock and then remove the adapter from the lens simultaneously. Package includes: 1 x AF Confirm Nikon Lens to Canon EOS Camera Mount Adapter. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.