Use existing EF and EF-S mount lenses on Canon EOS R cameras

The Canon EF-EOS R Control Ring Mount Adapter adapter allows EF and EF-S mount lenses to be used on Canon EOS R cameras, maintaining the same levels of performance and functionality seen on EOS DSLRs.

Change camera settings with a Lens Control Ring

The EF-EOS R Control Ring Mount Adapter features a Lens Control Ring, which can be used to adjust aperture, shutter speed, ISO or exposure compensation while your EOS R camera is still at your eye.

Built for professional use

Canon EF-EOS R Mount Adapters are weather sealed against dust and moisture and feature a metal lens mount on both the back and front. The exterior finish of the adapters matches both camera and lens.