EOS-1D Mark IV Firmware Update Version 1.0.8 — 7/6/2010

Firmware changes

Firmware Version 1.0.8 incorporates the following fixes.

  1. Fixes a phenomenon in which the set aperture moves unexpectedly when shooting movies in manual exposure mode using some Canon lenses (such as macro lenses).
  2. Corrects misspellings in the French and Spanish menus for applicable products.

The Version 1.0.8 firmware is for cameras with firmware up to Version 1.0.6. If the camera’s firmware is already Version 1.0.8, it is not necessary to update the firmware. Note that cameras with the Version 1.0.8 firmware cannot be downgraded to a previous firmware version (such as Version 1.0.6).
For full installation and information click here.

Files for Firmware Update

There are two kinds of compressed files for the firmware update according to your computer’s operating system (Windows, Mac OS X). Please extract it after downloading.
Firmware Update Version 1.0.8 (for Windows extraction)
Firmware Update Version 1.0.8 (for Mac OS X extraction)

Written by Jake Fruia

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