Canon has released a firmware update for its EOS 5D Mark III full-frame digital SLR camera. Click through / scroll down for a list of improvements and fixes implemented in Version 1.2.3.

1. Fixes a phenomenon in which the flash may not fire depending on the timing of when the shutter button is pressed. 
2. Fixes a phenomenon in which the AF microadjustment value may change.* 
3. Fixes a phenomenon in which the LCD monitor may show a line of false colour along boundaries of high contrast. 
4. Fixes a phenomenon in which the histogram of a LiveView image is incorrectly displayed when an HDMI cable is connected. 
5. 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.

Website: Canon EOS 5D Mark III Drivers & Software

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