This adapter can not be compatiable with Full Frame Camera and 650D, 700D Although the lens fit physically, automatic diaphragm, auto-focusing, or any other functions 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 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 F AI lens to EF 5D 7D 600D DC192 This fabulous Adapter can enable cameras to work with a variety of accessories It allow the 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 60D, 550D, 7D, and reprinted contacts Make AI AF mount lenses can be used on 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 Lens, then mount them onto the camera To Remove: Remove both lens / adapter together from the camera, then the lens lock and then remove the adapter from the lens simultaneously Package Contents: 1 x AF Confirm Lens to Camera Mount Adapter Only the above package content, other products are not included. Note: Light 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.