In addition to the introduction of the EOS R5 C, Canon today also announced a firmware update for its C70, which among other things gives the camera an internal 4K Cinema RAW Light LT recording. There is also a proxy recording function - Raw Light can be recorded in parallel with XF-AVC on one SD card at a time, so that the proxy files can be used at a lower data rate during later editing thanks to split timecode.
Canon C70
New frame and interval recording capabilities for stop-motion and time-lapse video will also be added with this next firmware. The update is scheduled for release next March. Back in December, there was an update that added compatibility with twelve more lenses when using the EF-EOS R 0.71x adapter, including full optical correction, metadata and autofocus support.
The Canon EOS C70 is equipped with an S35 sensor with dual gain output and is the first Cinema EOS to feature the new R-mount. The in-house (optionally available) EF-EOS R 0.71x bayonet adapter converts from EF to RF mount as a focal reducer à la Speedbooster and increases the image circle from S35 to full-frame in the process. This test shows how this works 
in combination with the C70. We had the Canon C70 also in the practical test and of course also in the sensor test and dynamic test.
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