This firmware update (Version 1.0.6) incorporates the following improvements and fixes.
1. Improves the reliability of communication with some CF cards.
2. Fixes a phenomenon that occurs in some cases involving color cast and vertical lines appearing in images.
Canon EOS-1Ds Mark III
The Version 1.0.6 firmware being released this time is for cameras with firmware up to Version 1.0.5. If the camera’s firmware is already Version 1.0.6, it is not necessary to update the firmware.