Canon Mount Adapter Allows EF/EF-S Lens Compatibility with EOS R Cameras

The Mount Adapter EF-EOS R connects Canon EF and EF-S lenses to RF-mount EOS R cameras. With no optics in the light path, each lens keeps its original focal length and rendering while gaining the electronic communication of the RF system, so autofocus, image stabilization, and aperture all operate as designed.

Metal mounts on both the lens and camera sides give a rugged, precise fit, and the barrel is dust- and water-resistant to match Canon's L-series build. The exterior is styled to sit cleanly against EF lenses, making it a practical way to carry an existing EF kit onto an EOS R body. Canon part number 2971C002.