Replacement adapter ring for Canon EOS R cameras. It replaces the original adapter ring and is designed to let EF and EF-S lenses be mounted on the RF mount full-frame EOS R bodies. Key benefits - Expands lens compatibility: use existing EF and EF-S glass on the EOS R system to broaden your shooting options without buying new RF lenses. - Reliable, precise connection: engineered to maintain proper alignment between lens and camera for dependable operation with legacy optics. - Simple installation and use: a straightforward replacement that integrates with the camera body and preserves balance and handling. - Compact and durable design: built to fit securely on EOS R bodies for regular, long-term use. Compatibility and performance - Works with Canon EF and EF-S lenses on Canon EOS R RF mount full-frame cameras. - Provides a seamless connection between different lens mounts to enhance shooting flexibility. Use scenarios - Travel and street photography: attach a lightweight EF prime to the EOS R to create a compact, versatile travel kit. - Event and portrait work: use standard EF/EF-S zooms or primes on the EOS R to cover common focal ranges without switching systems. - Studio testing and creative projects: experiment with legacy lenses on the EOS R to achieve unique looks and broadening your optical options.