Canon EF-EOS R 0.71x Mount Adapter

The technical details behind this Mount Adapter
Canon EF-EOS R 0.71x Mount Adapter offers reliable performance. Extending the range of compatible lenses while maintaining their original field of view, the Canon Mount Adapter EF-EOS R 0.71x permits attaching EF-mount lenses to RF-mount cine and mirrorless cameras. Intended for cameras featuring a Super35 sensor size, this adapter also incorporates an optical system to increase the effective angle of view by 0.71x, reducing the effects of a full-frame to Super35 crop factor and increasing the maximum aperture performance by one stop.
Key Features
Extends the range of compatible lenses
Permits attaching EF-mount lenses to RF-mount cine and mirrorless cameras
Top three Reasons we think you will love this Mount Adapter
Useful
Reliable
Great Performance