Compatible with: Nikon AI lenses mounted onto Canon EOS Rebel XSi, Rebel XTi, Rebel XT, Rebel 5D,10D,20D,30D,40D,300D,350D,400D,450D; Nikon AI lenses. 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 "stop-down mode" will need to be used when metering 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(A/V). Package Including: 1 X lens adapter ring Suitable for: ALL Canon EOS DSLR and Film SLR (as long as the body takes Canon EF lens)