Canon has released firmware updates for its EOS 5D Mark III and EOS-1D X DSLRs. Both updates claim to improve the user’s ability to control autofocus in Live View mode when wide angle lenses are used. Firmware 2.0.7 for the 1D X also fixes a couple of issues, including a problem with vertical lines appearing when long exposures are used and some instances when the electronic level indicator didn’t work properly. See full details below.


Canon EOS-1D X firmware version 2.0.7:

Firmware Version 2.0.7 incorporates the following functional improvements and fixes. 

  1. Improves the AF controllability when shooting in Live View mode with a wide-angle lens (fixed focal length or zoom).
  2. Fixes a phenomenon in which, when shooting long exposures (several minutes), vertical lines appear on the right edge of captured images (still photos).
  3. Fixes a phenomenon in which the Auto Exposure Bracketing (AEB) may not perform as intended when in continuous shooting mode and where the shutter speed is longer than 1 second.
  4. Improves the reliability of the control mechanism for the Picture Style Auto setting.
  5. Fixes a phenomenon in which the electronic level indicator does not work correctly.
  6. Fixes a phenomenon in which, when using the “Save and read camera settings” function, the color space data that is selected in “Custom shooting mode (C1-C3)” is not saved. *1
  7. Corrects some incorrect indications on the “English” and “Russian” menu screens.

*1 As a result of this fix, cameras with Firmware Version 2.0.7 will not be able to read the “camera settings file” created  with cameras running  Firmware Version 2.0.3 (or earlier). If you require the “camera settings file”, please create it after updating to firmware version 2.0.7.

Canon EOS 5D Mark III firmware version 1.3.3:

Firmware Version 1.3.3 incorporates the following improvement and fix.

  1. Improves the AF controllability when shooting in Live View mode with a wide-angle lens (fixed focal length or zoom).
  2. Corrects some incorrect indications on the “English” and “Russian” menu screens.