There is a new firmware for the R firmware 1.6.0
https://www.usa.canon.com …subtab=downloads-firmware
Also for the RF 24-105
https://www.usa.canon.com …usm?tab=drivers_downloads
Firmware Version 1.6.0 incorporates the following enhancements and fixes:
1. Support for the RF85mm F1.2L USM DS lens has been added.
2. Corrects a phenomenon in which the function or setting value assigned to the control ring may change when the control ring is operated in Eco mode.
3. Corrects a phenomenon in which the camera may stop operating properly during "auto transfer" when using Camera Connect with a Wi-Fi connection.
4. Corrects a phenomenon in which high-speed synchronization with use of an external flash may not operate properly depending on the camera’s setting for C.Fn2 "Set shutter speed range".
Firmware (2.0.1) incorporates the following enhancement:
- Reduces color unevenness when capturing images using long (Bulb) exposure mode with the EOS Ra.
*Manual focus cannot be activated during exposure. And performing zoom operations during exposure, the subject may be out of focus.








