Firmware Updates for Canon EOS 1D Mark IV and Rebel T2i/550D

Canon Logo

July 7, 2010 – Canon released firmware updates for the EOS 1D Mark IV and the Rebel T2i/550D.

EOS 1D Mark IV Logo

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).

Here’s a link to download the EOS 1D Mark IV Firmware Update Version 1.0.8.

Rebel T2i/550D Logo

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).

The Version 1.0.8 firmware is for cameras with firmware up to Version 1.0.7. If the camera’s firmware is already Version 1.0.8, it is not necessary to update the firmware.

Here’s a link to download the EOS Rebel T2i / 550D Firmware Update Version 1.0.8.

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