Canon has released new firmware updates for its EOS-1D X Mark III DSLR and EOS R6 mirrorless camera systems. The substantial updates bring, amongst other bug fixes and improvements, the ability to record video in Canon Log 3 and record to two memory cards simultaneously.

For the 1DX Mark III, firmware 1.5.0 adds Canon Log 3 which can now be selected from the Log settings. The company says that support for RAW videos shot with Canon Log 3 and RAW (Light) will be available in future versions of the Cinema Raw Development in the Digital Photo Professional software as well as support for the processing of RAW movies shot with Canon Log 3 with the application of Viewing LUT.
The update also adds the ability to simultaneously record videos on both memory cards, with the exception of RAW and RAW (Light) which cannot be recorded to both cards at the same time. Canon has also added support for VPG Profile 4.0, the latest Video Performance Guarantee (VPG) specification from the CompactFlash Association, and has fixed an issue where switching from Still Photo mode to Movie Mode wouldn’t change the settings accordingly.

For the R6, just like on the 1DX Mark III, firmware version 1.4.0 adds Canon Log 3 to the Canon Log settings and also enables simultaneous recording to both memory cards with no notes of limitations on the feature.
The update also improves stability when using the new RF 400mm F2.8 L IS USM and RF 600mm F4 L IS USM lenses and fixes two issues: one wherein the HDMI out will show a zebra pattern after the camera’s screen turns off and one where image stabilization activation is delayed when shooting.

These updates are both free, and the EOS R6 and 1DX Mark III cameras can be updated after first downloading the firmware update from Canon’s website: firmware 1.5.0 for the 1DX Mark III and firmware version 1.4.0 for the EOS R6.