Posted by Canon Professional Network on January 30, 2013 •
(…) « Firmware Version 1.2.1 for the EOS-1D X incorporates the following improvements and fixes:
1. The function to disable the Image size selection button has been added.
2. Fixes a phenomenon in which Err 70 and Err 80 may occur in very rare instances depending on the camera settings or shooting scene.
* EOS-1D X Firmware Version 1.2.1 is available to download – please click here, then enter your country and camera details and select the firmware option to download the firmware. The version 1.2.1 firmware being released this time is for EOS-1D X cameras with firmware up to version 1.1.1. »
See on cpn.canon-europe.com