Download Canon EOS 5D Mark III Camera Firmware Update 1.2.3

To start downloading Canon EOS 5D Mark III Camera Firmware Update 1.2.3, please choose one of the links from the list below.

  1. EOS 5D Mark III Firmware Update 1.2.3 for Windows XP 32-bit, Windows Vista 32-bit, Windows Vista 64-bit, Windows 7 32-bit, Windows 7 64-bit, Windows 8 32-bit, Windows 8 64-bit, Windows 8.1 32-bit, Windows 8.1 64-bit: eos5d3-v123-win.zip
  2. EOS 5D Mark III Firmware Update 1.2.3 for Mac OS X, Mac OS X v10.8, Mac OS X v10.7, Mac OS X v10.6, Mac OS X v10.5, Mac OS X v10.9: eos5d3-v123-mac.dmg

Notes:

  • Once the EOS 5D Mark III camera is updated to Version 1.2.0 (or later), it cannot be restored to a previous firmware Version (Version 1.0.7 through 1.1.3).
  • It is recommended that the latest application software*1 be used, once the EOS 5D Mark III is updated to the new firmware Version 1.2.0 (or later) from older firmware (Versions 1.0.7 through 1.1.3). Certain previous versions of these applications do not support functions which are added by the new firmware.
  • In order to use EOS Utility software with the updated EOS 5D Mark III, the EOS Utility software must be updated to the latest version.

You can download the latest application software from our Web site.
*1: EOS Utility Version 2.12.11 or later (for Windows, for Mac OS X)
*1: Digital Photo Professional Version 3.12.52 or later (for Windows, for Mac OS X)

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