Connect your EF or EF-S lens to your new EOS R system camera with this specially designed adapter. This adapter features a lens control ring, which can be programmed via the camera's menu for customis more→ed adjustment of various settings such as aperture, shutter speed, ISO or exposure compensation - all while your EOS R camera is still at your eye. Canon EOS R adapters are weather-sealed against dust and moisture, ready to be used on location.Benefits:- Programme this lens control ring to adjust aperture, shutter speed, ISO or exposure compensation while your EOS R camera is still at your eye- Allows EF and EF-S lenses to be used on Canon EOS R bodies- EF and EF-S lenses behave in the same way …