This adapter can not be compatiable with Canon Full Frame Camera and 650D, 700DAlthough the lens will fit physically, automatic diaphragm, auto-focusing, or any other functions will not operate correctly while using this adapterIn 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 modeFor this inchAF inch adapter, it is didnt mean you can use Auto focus, it only have an indication (bee sound) when you manual focus actuallyFor 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 undertakeWith AF-Confirm ChipEXIF is fixed 50mm f1.4Supports AV (Aperture Priority) and Manual Modefixed a bug of focus on EOS 60D, 550D, 7D, and reprinted contactsMake Nikon AI AF mount lenses can be used on Canon EOS EF camera bodyIt is a aperture pin stop down flange versionIt is possible to use Macro rings and other accessoriesIt can focusing infiniteMaterial: Chrome-plated BrassColour:silverTo Mount:Attach the adapter onto the Nikon Lens, then mount them onto the cameraTo Remove:Remove both lens / adapter together from the camera, then press the lens lock and then remove the adapter from the lens simultaneouslyPackage 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. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store