Canon Firmware

Canon has released firmware v1.2.0 for the Canon EOS-1D X Mark III

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Canon has released a firmware update for the Canon EOS-1D X Mark III.

Firmware Version 1.2.0 incorporates the following enhancements and fixes:

  • 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.
  • Enhances Auto Focus (AF) for improved face and eye recognition at greater distances.
  • Fixes a phenomenon that may occur during viewfinder shooting, in which the shutter may not be released or the camera may not operate in the following settings:
    • In One-Shot AF mode, when the AF Area Selection Mode is set as Zone AF, Large Zone AF or Automatic Selection AF.
    • In AI Servo AF, when direct AF point selection is made using the smart controller.
    • When the Register/Recall Shooting Function is assigned to the AE Lock button, in the Custom Controls.
  • Connectivity during FTP transmission has been improved.
  • Improves Wi-Fi connectivity when using the Wireless File Transmitter WFT-E9.
  • Fixes a phenomenon, in which the card access time may take longer when using certain CFexpress cards.

Download firmware v.1.2.0 for the Canon EOS-1D X Mark III at Canon USA


CR Pro
Jul 16, 2017
Hamburg, Germany
why does Canon not add the Animal Eye AF to the 1DX Mark III ? I do not understand since the R5 has this feature already.
Therefore the 1 DX Mark III falls behind the R5 for the Wildlife Photographer ;o(((
They could only add it to the LiveView. And while they may still do it, I think it makes sense to keep the AF quality in the OVF not to far behind LiveView.


Jul 19, 2015
Upgraded my Mk3 last night, was shooting the kids in low light with my 35II, tbh I was not blown away by the new eye AF...