Made of black anodized aluminium the KIWIFOTOS LMA-OM_EOS lens mount adapter allows Olympus OM lens to be used on any Canon EOS film or digital SLR camera bodies.The lens fits physically, automatic diaphragm but auto focusing, or any other functions will not operate correctly. Use the lens in the fully manual exposure mode (M) and set the designed aperture with the aperture control ring by hand however you can set your camera to Aperture Priority (AV) mode to use the camera in auto exposure. Focus to infinity is available.