Canon EOS 5D Mark III firmware update

Canon has updated the firmware for its EOS 5D Mark III camera.

You can download it from the Canon website.

Firmware Version 1.2.3 incorporates the following improvements and fixes (from the release notes):

• 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.

*The phenomenon listed in 2 was addressed with Firmware Version 1.2.1, and has been further improved with Firmware Version 1.2.3.