Canon has released new firmware for the Canon EOS-1D X Mark III, bringing the firmware to v1.2.1. This is a bug fix update.
Firmware Version 1.2.1 incorporates the following fix:
Fixes a phenomenon, in which, after updating the camera’s firmware to version 1.2.0, the Smart Controller may respond slowly or not at all on some cameras. *)
*) The phenomenon described above may occur in cameras whose first two digits of the serial number are “01” “02” “03” or “04”.
Firmware Version 1.2.1 also incorporates the following fixes and enhancements from Firmware Version 1.2.0:
Enhancements when using Browser Remote:
The image list displayed will be refreshed automatically on the browser.
On the shooting screen of the browser, you can set the movie resolution and a high frame rate.
On the shooting screen of the browser, you can change the movie shooting mode.
On the shooting screen of the browser, Live View will be displayed as soon as you select the movie shooting button...