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 specificationSpecifications
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Magnification
0.71x
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Compact
77.2 x 76.6 x 20.7mm Approx.
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Lightweight
200g
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.
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.
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.
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).
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.
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What's in the box
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MOUNT ADAPTER EF-EOS R 0.71x
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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.
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CN-E14mm T3.1 L F
An ultra-wide angle fixed length lens with spectacular 4K image quality and great creative control. -
CN-E20mm T1.5 L F
Discover the range of EF and PL mount Cinema EOS lenses for 4K and 2K productions. -
CN-E24mm T1.5 L F
An ultra-wide angle fixed focal length lens with spectacular 4K image quality and great creative control. -
CN-E50mm T1.3 L F
A lightweight, compact, prime lens designed for EF mounts with spectacular 4k image quality. -
CN-E85mm T1.3 L F
A short telephoto prime lens with 4k image quality and a natural angle of view and perspective. -
CN-E135mm T2.2 L F
A compact, EF mount telephoto lens, with 4K image quality and creative control over depth of field.
EF Prime Lenses
EF fixed focal length lenses offering a blend of image quality, compact size and wide maximum apertures.
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EF 14mm f/2.8L II USM
A precision-designed ultra wide-angle, L-series lens with a rectilinear design to correct distortion. -
EF 24mm f/1.4L II USM
The professional’s wide-angle lens with L-series optics, with a fast f/1.4 aperture, ideal for low light. -
EF 35mm f/1.4L II USM
A professional grade wide-angle lens with a natural perspective, an f/1.4 aperture and low light capabilities. -
EF 50mm f/1.2L USM
Professional L-series, f/1.2 aperture USM lens for low light and extreme depth of field control. -
EF 135mm f/2L USM
A professional telephoto L-series lens with wide f/2 aperture ideal for portrait and low light photography.
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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EF 16-35mm f/2.8L II USM
A professional L-series ultra-wide f/2.8 zoom lens, ideal for low light and reportage photography. -
EF 16-35mm f/2.8L III USM
Favoured by many, this new version of the classic wide zoom offers stunning sharpness throughout the zoom range. -
EF 16-35mm f/4L IS USM
A high performance L-series ultra wide-angle lens with integrated Image Stabilizer technology. -
EF 24-70mm f/2.8L II USM
A professional everyday L-series zoom that delivers high image quality with a constant f/2.8 aperture. -
EF 24-105mm F4L IS USM
An L-series lens with a versatile focal length range and constant f/4 aperture for a wide range of uses. -
EF 24-105mm f/4L IS II USM
Favoured by those wanting to carry a single lens on location, this lens delivers stunning image quality with advanced image stabilisation. -
EF 70-200mm f/2.8L IS II USM
A professional L-series medium telephoto zoom lens with a powerful Image Stabilizer and f/2.8 aperture. -
EF 70-200mm f/4L IS USM
A premium L-series constant f/4 zoom lens with Image Stabilizer ideal for handheld photography and sports. -
EF 70-200mm f/4L IS II USM
Travel light, with a professional-grade telephoto zoom that’s built for portability and performance.
Canon Mount Adapter EF-EOS R 0.71x
Ratings & Reviews
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- All data is based on Canon standard testing methods except where indicated. Subject to change without notice.
- 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