This adapter can not be compatiable with Canon Full Frame Camera and 650D, 700D Although the lens will fit physically, automatic diaphragm, auto-focusing, or any other functions will not operate correctly while 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 inchAF inch adapter, it is didn't mean you can use Auto focus, it only have an indication (bee sound) when you manual focus actually For Nikon F AI AIS lens to Canon EOS EF 5D 7D 600D DC192 This fabulous Adapter can enable Canon EOS cameras to work with a variety of accessories It will allow the Canon EOS owner to widen the scope of photography they undertake With AF-Confirm Chip EXIF is fixed 50mm f1.4 Supports AV (Aperture Priority) and Manual Mode fixed a bug of focus on EOS 60D, 550D, 7D, and reprinted contacts Make Nikon AI AF mount lenses can be used on Canon EOS EF camera body It is a aperture pin stop down flange version It is possible to use Macro rings and other accessories It can focusing infinite Material: Chrome-plated Brass Colour: silver To Mount: Attach the adapter onto the Nikon Lens, then mount them onto 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 Contents: 5 x AF Confirm for Nikon Lens to Canon EOS Camera Mount Adapter