Canon EOS-1D X Mark III Firmware Update Version 1.2.1 Now Available

Canon has made Canon EOS-1D X Mark III firmware update version 1.2.1 available for download.

Firmware Version 1.2.1 incorporates the following fixes and enhancements:

  1. 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".

Posted: 10/31/2020 10:16:42 AM CT   Posted By: Bryan
Posted to: Canon News    Category: Canon Firmware Updates
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