Unfortunately, downloading them is quite a hassle (sometimes you have to click through 5 pages to get to the download button, sometimes you have to type in the serial number of your camera etc.), so for easier accessibility here are direct links to most of the currently available firmware updates. EOS 5D Mark III Firmware Update, Version 1.3.6 Mac OS X For macOS 10.14, 9th February 2019 EOS 5D Mark III Firmware Update, Version 1.3.6 Windows. Description: Firmware Version 1.3.3 Mac OS X for Canon EOS 5D Mark III Changes Download Canon EOS 5D Mark III Firmware Version 1.3.3 Mac OS X v.1.3.3.
It seems to be firmware update time, with the Canon EOS 5D Mark III getting another update to resolve several “phenomena” found in earlier versions of the EOS 5D Mark III firmware. Personally I have not experienced any of these myself so far with my EOS 5D Mark III.
Canon 5d Mark Iii Firmware 1.2 3 Download Mac Os
Canon 5d Mark Iii Firmware 1.2 3 Download Mac High Sierra
Canon says that firmware Version 1.2.3 incorporates the following improvements and 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.
*The phenomenon listed in 2 was addressed with Firmware Version 1.2.1, and has been further improved with Firmware Version 1.2.3.
The firmware can be downloaded from Canon’s websites in the USA or Europe, please choose either the version for MAC or Windows computers.
If you are looking for the latest update for a different camera model make sure to visit the firmware update page.