This adapter can not be compatible with 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 controlled by the camera body You can with manual mode or priority mode. For this inches inch adapter, it is didn't mean you can use Autofocus, 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 of accessories. It will allow the owner to widen the scope of photography they undertake With -Confirm Chip EXIF is fixed 50mm f1.4 Supports AV ( Priority) and Manual Mode fixed a bug of focus on 60D, 550D, 7D, and reprinted contacts Make For AI mount lenses can be used on EF camera body Material: Chrome-plated brass colour: silver Package Contents: 1 x Adapter Only the above package content, other products are not included. Note: Light reflection 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.