EF to RF MOUNT ADAPTER R 0.71x
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Canon Mount Adapter EF-EOS R 0.71x

An EF to RF adapter to use the broad range of Canon EF lenses on the EOS C70 camera.

Adapt, frame, add brightness and more

The MOUNT ADAPTER EF-EOS R 0.71x is an EF to RF Mount Lens Adapter that maintains the original angle of view of a full frame EF lens when used on the EOS C70. It also increases the light transmission, to offer a one-stop brighter image.

See full specification
EF to RF MOUNT ADAPTER R 0.71x
EF to RF MOUNT ADAPTER R 0.71x
EF to RF MOUNT ADAPTER R 0.71x
EF to RF MOUNT ADAPTER R 0.71x
EF to RF MOUNT ADAPTER R 0.71x
EF to RF MOUNT ADAPTER R 0.71x

Specifications

  • Magnification

    0.71x

  • Compact

    77.2 x 76.6 x 20.7mm Approx.

  • Lightweight

    200g

See full specification Get Support
New firmware is available from December 3rd, 2021, offering additional lens support via the 0.71x Mount Adapter, and more. For more information and to download now, please follow the link.

Adapt EF lenses for use on RF Super 35mm System

The MOUNT ADAPTER EF-EOS R 0.71x is an EF to RF mount adapter for using the wide range of full frame Canon EF lenses on the EOS C70.
EF Lens on RF mount, EF to RF MOUNT ADAPTER R 0.71x

Maintain full frame angle of view

The adapter gives the same angle of view when utilising full frame lenses on the Super 35mm sensor of the EOS C70, by adapting the focal length by a factor of 0.71x from full frame format to Super 35mm format.
Person holding EOS C70 with RF lense, Full frame format, Super 35 mm format

One stop brighter

By reducing the focal length of the lens, MOUNT ADAPTER EF-EOS R 0.71x increases light transmission, effectively increasing the f/stop value of a lens. For example, an F2.8 lens becomes approximately F2.0, for low-light shooting and lower signal noise.
EF to RF MOUNT ADAPTER R 0.71x, Increased light transmission

Superior communication between lens and body

Full communication between EF lenses and the camera body is maintained, with support for Dual Pixel CMOS AF1, as well as peripheral illumination and chromatic aberration correction. The adapter also transmits information from the lens, and is displayed on screen (F value, focal length and lens metadata are supported).
EF to RF MOUNT ADAPTER R 0.71x, Superior commutation between lens and body, Dual pixel CMOS AF, Chromatic aberration correction, peripheral illumination

No compromise construction

Designed for reliability and durability, the included locking plates secure the adaptor to the body with four screws. Shoot with confidence even when using large and heavy lenses.

EF to RF MOUNT ADAPTER R 0.71x, durability, locking plates

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EOS C70 whats in the box

What's in the box

  • MOUNT ADAPTER EF-EOS R 0.71x

  • 2 x Locking Support Plates & 4 x Screws

CN-E Prime Lenses

A range of compact Full-Frame cinema prime lenses with spectacular 4K image quality.

EF Prime Lenses

EF fixed focal length lenses offering a blend of image quality, compact size and wide maximum apertures.

EF Zoom Lenses

EF Zoom lenses give you the flexibility to change your framing at the twist of the zoom ring.

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  1. All data is based on Canon standard testing methods except where indicated. Subject to change without notice.
  2. A combination of specific lens models and lens settings may cause vignetting to appear on the edges of the image when using the EF-EOS R 0.71x mount adapter