The Canon Mount Adapter EF-EOS R 0.71x permits attaching EF-mount lenses to RF-mount cine and mirrorless cameras. Extending the range of compatible lenses while maintaining their original field of view. Intended for cameras featuring a Super 35 sensor size. This adapter also incorporates an optical system to increase the effective angle of view by 0.71x. Thus reducing the effects of a full-frame to Super 35 crop factor. In addition, it increases the maximum aperture performance by one stop.
The EF-EOS R 0.71x adapter has electric contacts . Thus maintaining full communication between the camera and lens. In addition, the mount communicates metadata and Dual Pixel AF. This enables auto-focus with select Canon EF lenses. Finally, the adapter mounts seamlessly with the EOS C70 cinema camera. Thus featuring four screws and a split locking collar to ensure a secure attachment.
Canon Lens Compatibility
This adapter physically supports working with any Canon EF-mount lens. However, select lenses can maintain full Dual Pixel autofocus support and metadata transmission between the lens and camera, including:
- 16-35mm f/2.8L III USM Canon EF-mount
- 24-70mm f/2.8L II USM Canon EF-mount
- 24-105mm f/4L IS II USM Canon EF-mount