Canon EOS-1D Mark III Camera Firmware Update 1.3.1

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Date Added: May 2013 / Publisher:Canon / File Size: 10.09 MB
OS: Mac OS X, Windows XP, Windows Vista, Windows 7, Windows 8


Release Date: 05/29/13

Firmware Version 1.3.1 for the Canon EOS-1D Mark III camera incorporates the following functional improvement:

  • Enables the center AF point to autofocus when the camera is used with the EF 200-400mm f/4L IS USM Extender 1.4X lens and an Extender, whose combined maximum aperture is f/8.

Firmware Version 1.3.1 is for cameras with firmware version 1.3.0 or earlier. If your camera’s firmware is already Version 1.3.1, it is not necessary to update the firmware.

When updating the firmware of your camera, please first go over the instructions thoroughly before you download the firmware.

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