Complete integration with no compromises.
The Mount Adapter EF-EOS R gives you the ability to utilize any Canon EF or EF-S lens with the EOS R camera, letting you use your existing lenses with the camera and allowing you to expand your horizons. Lightweight, compact and easy to attach, the Mount Adapter EF-EOS R makes it possible to use EF and EF-S lenses without compromising functionality, speed or quality. With a stylish design that matches the EF and EF-S lens look and a sturdy, dust- and water-resistant construction, the Mount Adapter EF-EOS R makes it easy to adapt to more lens choices and possibilities.
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: Φ2.80 x 0.94 in. / Φ71.2 x 24mm (adapter only)
Weight: Approx. 3.9 oz. / 110g (adapter only)
This Kit Includes:
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