Canon EF-EOS R 0.71x Mount Adapter

About: Canon EF-EOS R 0.71x Mount Adapter

Canon's innovative EF - RF optical adapter, the Mount Adapter EF-EOS R 0.71x, converts light transmission from full-frame to the Super 35mm image format. It extends the angle of view and optical sensitivity, while seamlessly integrating with the camera's optical corrections. This unit greatly expands the list of compatible lenses by including Canon's renowned line of EF lenses. In addition to the flanges of the RF mount, four screws securely attach the adapter to the EOS C70 camera. Once mounted, the adapter maintains a similar angle of view of your full frame lenses on the Super 35mm sensor, while boosting the speed of the attached lens. The adapter also carries all EF information through to the RF contacts, so, on certain EF lenses*, full DPAF and metadata will be available with EOS C70 camera, working much as they do on a native EF mount.

• Designed for the EOS C70
• Adapts full-frame, EF-mount lenses to the C70’s RF-mount while maintaining a full-frame lens angle of view
• Increases EF lens light transmission by boosting lens speed by 1 full stop 
• Supports Dual Pixel CMOS Auto Focus, lens metadata, AE/Auto Iris and vignette/lateral chromatic aberration correction on compatible EF lenses 

Adapts EF-mount Lenses and Maintains a Full-Frame Lens Angle of View

The Mount Adapter EF-EOS R 0.71x allows the use of widely-available EF-mount lenses on the C70 while maintaining an angle of view similar to full-frame on the C70’s S35mm sensor.

[full frame angle of view]

Boosts Lens Speed by 1 Full Stop

By increasing EF lens speed by one full stop, the Mount Adapter EF-EOS R 0.71x boosts image brightness, which is especially helpful in dark shooting conditions.

[boost lens speed]

Supports Dual Pixel CMOS Auto Focus, Lens Metadata, and More on Compatible EF Lenses*

The Mount Adapter EF-EOS R 0.71x provides full EF-RF lens communication including support for Dual Pixel CMOS Auto Focus, Auto Exposure and Auto Iris. With compatible EF lenses, the adapter provides the communication necessary to help control vignetting and lateral chromatic aberrations while also ensuring the accurate display of F-stop and focal length.

• * EF-EOS R 0.71x Firmware Version 1.3.0 adds full functionality for the following lenses:
  • EF Cinema Lenses
    • CN-E14mm T3.1 L F
    • CN-E20mm T1.5 L F
    • CN-E24mm T1.5 L F
    • CN-E35mm T1.5 L F
    • CN-E50mm T1.3 L F
    • CN-E85mm T1.3 L F
    • CN-E135mm T2.2 L F
  • EF Lenses
    • EF 14mm f/2.8L II USM
    • EF 24mm f/1.4L II USM
    • EF 35mm f/1.4L II USM
    • EF 50mm f/1.2L USM
    • EF 85mm f/1.2L II USM
    • EF 135mm f/2L USM
    • EF 16-35mm f/2.8L II USM
    • EF 16-35mm f/2.8L III USM
    • EF 16-35mm f/4L IS USM
    • EF 24-70mm f/2.8L II USM
    • EF 24-105mm f/4L IS USM
    • EF 24-105mm f/4L IS II USM
    • EF 70-200mm f/2.8L IS II USM
    • EF 70-200mm f/2.8L IS III USM
    • EF 70-200mm f/4L IS USM
    • EF 70-200mm f/4L IS II USM