Customizable control with no compromise.
The Control Ring Mount Adapter EF-EOS R allows use of EF and EF-S lenses, while adding a control ring similar to those found on RF lenses providing the same level of control to your EF and EF-S lenses and supporting the same setting configuration regardless of lens. The ring is customisable and easy to find without taking the camera from your eye offering tactile manual control over various settings. Featuring a matching design and resilient, dust- and water-resistant construction, the Control Ring Mount Adapter EF-EOS R is a no-compromise way to incorporate your EF and EF-S lenses into the EOS R system.
The Lens Control Ring can be programmed via the camera’s menu to adjust various settings such as aperture, shutter speed, ISO sensitivity and exposure compensation.
Tactile, intuitive handling
It’s easy to find the Lens Control Ring without taking the camera away from your eye. Gentle clicks give a tactile feedback in thirds or halves of a stop (and can be removed via a special Canon service for filmmakers wanting smoother operation).
EOS R Adapters
The EOS R System adapters offer full compatibility with Canon EF and EF-S lens range, giving EOS R owners who also own an EOS camera complete integration with their existing lenses.
Bring your EF-S lenses to the EOS R System
EF-S lenses are designed for APS-C sensor EOS DSLRs, but they can also be used on EOS R cameras like EOS R. The camera will automatically produce cropped 11.6-megapixel images that match the smaller image circle of EF-S optics.
Built to last
EOS R adapters are built to withstand professional use, with metal mounts on the front and back. They are also weather-sealed against dust and moisture, so you can keep shooting even in tough conditions.
Designed to perform
Expect your lenses to behave in the same way as they do on EOS DSLRs, turning in the same great performance with the same high quality.
Canon engineers developed the EOS R System adapters to maintain compatibility, quality and performance when connecting the EOS R to existing EF and EF-S lenses.
Mount Specification: Canon EF mount (camera side) / Canon RF mount (lens side)
Usable Lens: Canon EF lenses | Excludes RF lenses, EF-M lenses, CN-E lenses (EF cinema lenses)
Usable Camera: Canon EOS R camera
Dust- & Water-resistance: Provided (rubber ring)
Dimensions: Φ2.93 x 0.94 in. / Φ74.4 x 24mm (adapter only)
Weight: Approx. 4.6 oz. / 130g (adapter only)