Highlights:

Canon EF/EF-S Lens to EOS R Camera

Maintains AF and Image Stabilization

Dust- and Water-Resistant#

Lightweight

Extending the range of compatible lenses, the Canon Mount Adapter EF-EOS R is a lightweight, compact lens adapter designed for attaching any EF or EF-S-mount lens to the EOS R mirrorless digital camera.

 This simple adapter retains full autofocus and image stabilization capabilities and contains no optical components, thereby maintaining the original optical quality of the mounted lens. It is also dust- and water-resistant, making it suitable for use in harsh weather conditions.

Finally, as the adapter is lightweight –approximately 110g – it means that it doesn't add much weight to your lens.