Large increase in lens support
The EOS C70
features Canon's RF mount, so it's compatible with all Canon RF lenses. In December 2020, support for the Canon EF 16-35mm f/2.8L III USM
, EF 24-70mm f/2.8L II USM
and EF 24-105mm f/4L IS II USM
was added to the Canon Mount Adapter EF-EOS R 0.71x
, and in June 2021, a further seven EF lenses were included on the compatibility list. The latest firmware update adds an additional 13 EF and Cine Prime lenses with full optical correction, view/metadata and AE/AF (for supported lenses).
You would normally need to take the focal length difference into consideration when using full-frame glass on a crop sensor, such as the EOS C70's Super 35mm, but mounting via the Canon Mount Adapter EF-EOS R 0.71x means you can benefit from the same full-frame field of view. "That means the Canon CN-E20mm T1.5 L F
actually shows the field of view of a 20mm lens," explains Paul. "In addition, you gain an effective one-stop increase in the maximum aperture. For example, a lens with a maximum aperture of f/4 effectively becomes one with a maximum aperture of f/2.8, which results in a one-stop brighter image.
"Canon’s Cine Prime lenses are fully manual, so you don’t get auto exposure or autofocus capabilities, but you can use the Dual Pixel Focus Guide, which tells you which way you need to rotate the focus ring. The standard EF lenses are fully compatible with full autofocus and you also get aperture control."