Canon EF-EOS R Control Ring Mount Adapter

Programme this lens control ring to adjust aperture, shutter speed, ISO or exposure compensation while your EOS R camera is still at your eyeAllows EF and EF-S lenses to be used on Canon EOS R bodiesEF and EF-S lenses behave in the same way as they would on Canon EOS DSLRsWeather-sealed against dust and moistureMetal lens mount on both the back and front of the adapterWeight: approx. 130 g, Max. Diameter and Length: 74.4 x 24.0 mm