Description: The KIWIFOTOS LMA-NK(G)_EOS ultra thin lens mount adapter is fine finishing, made of black anodized aluminium (camera body mount) and brass silver (lens mount). This adapter allows you to use the majority of Nikon F and AI (auto or manual focus) lenses on your Canon EOS camera. The lens fits physically but automatic diaphragm, auto-focusing, or any other functions will not operate correctly. In this case "stop-down mode" will need to be used when metering. The adapter is also equipped with a "ON/OFF" aperture control ring for user to set the designed aperture. Preserve all focusing range up to the infinity point.