Canon Releases Minor 5D Mark III Firmware Update

Firmware version1.2.3 fixes a handful of relatively minor problems

canon 5d mark iii

canon 5d mark iii

Canon has released firmware version 1.2.3 for the 5D Mark III. This update patches a number of bugs (which Canon has labeled "phenomenona") including problems with AF microadjustments, flash firing, and weirdness with the LCD.

Here's the complete set of bug fixes:

  • Fixes a phenomenon in which the flash may not fire depending on the timing of when the shutter button is pressed.
  • Fixes a phenomenon in which the AF microadjustment value may change.
  • Fixes a phenomenon in which the LCD monitor may show a line of false color along boundaries of high contrast.
  • Fixes a phenomenon in which the histogram of a LiveView image is incorrectly displayed when an HDMI cable is connected. Enables the brightness of the camera's LCD monitor to be adjusted even when an HDMI cable is connected.

All told, it's a fairly minor patch, but doubtless a useful one for anyone facing these issues.