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The Canon EF-EOS R 0.71x Mount Adapter expands the range of lenses you can use on Canon RF-mount cine and mirrorless cameras while maintaining the lenses’ original fields of view. Key features include:
Mounts Canon EF / EF-S lenses to Canon RF cameras
Increases your lens’s maximum aperture by 1 stop
Widens your focal length by 0.71x
Electronic communication with the camera
Full-Frame to Super 35 Adapter. The Canon EF-EOS R 0.71x Mount Adapter lets you use almost any Canon EF or EF-S mount lens on Canon RF-mount cine and mirrorless cameras. It’s intended for cameras with Super 35 sensors, like the EOS C70, and incorporates an optical system that increases the effective angle of view by 0.71×. This reduces the effects of a full-frame to Super-35 crop factor and increases the maximum aperture performance by one stop.
Electronic Communication. This adapter provides electronic communication between the camera and lens, supports metadata transmission, and lets you use Dual-Pixel Autofocus with select Canon EF lenses.
Looking for a Simpler Adapter? If you’re looking for a simpler EF to EOS R adapter that contains no optical components, we also rent the Canon EF-EOS R Mount Adapter.
No. This adapter enables the opposite, Canon EF-mount lenses to be used on Canon RF-mount cameras.
Autofocus |
Unknown |
Brand |
Canon |
Camera Mount |
Canon RF |
Compatibility |
Full Frame |
Focal Length |
Unknown |
Hood Included |
No |
Image Stabilization |
No |
Item Type |
Lens |
Lens Mount |
Canon EF |
Lens Type |
Adapter |
Magnification |
0.71x |
Mfr. Model Number |
4757C001 |
Mount |
Canon RF |