This adapter is not compatible with Canon Full Frame Cameras or the 650D, 700D. Although the lens will fit physically, automatic diaphragm, auto-focusing, or any other functions will not operate correctly when using this adapter. This is because the lens does not have the ability to have its aperture controlled by the camera body. You can shoot in manual mode or aperture priority mode. For this AF adapter, it does not enable autofocus functionality; it only provides focus confirmation (beep sound) when manually focusing. Designed for Nikon F AI AIS lenses to Canon EOS EF mount cameras including 5D, 7D, 600D. This adapter enables Canon EOS cameras to work with a variety of Nikon lenses. It allows Canon EOS owners to expand their photography capabilities. Features an AF-confirm chip. EXIF data is recorded as 50mm f/1.4. Supports AV (Aperture Priority) and Manual shooting modes. Fixed focus issues on EOS 60D, 550D, 7D, and includes reprinted electrical contacts. Allows Nikon AI and AF mount lenses to be used on Canon EOS EF camera bodies. Features an aperture pin stop-down flange design. Compatible with macro rings and other accessories. Capable of infinity focusing. Material: Chrome-plated brass Color: Silver Mounting Instructions: Attach the adapter to the Nikon lens, then mount the combination onto the camera body. Removal Instructions: Remove the lens and adapter together from the camera. Press the lens lock button and remove the adapter from the lens simultaneously. Package Contents: 1 x AF Confirm Nikon Lens to Canon EOS Camera Mount Adapter Note: Light shooting and different displays may cause slight color variations between the image and the actual item. Measurement error allowance is +/- 1-3 cm.