The Canon Mount Adapter EF-EOS R is the indispensable accessory for those transitioning to the Mirrorless system without giving up their historical lenses. This adapter allows you to mount EF and EF-S lenses on EOS R camera bodies, maintaining identical performance to the original DSLRs. Thanks to complete electronic communication, it guarantees lightning-fast autofocus and full aperture control, ensuring that the quality of your favorite glass remains intact in the new ecosystem.