EOS C300 Mark II Firmware Update

24th March 2016

This is version 1.0.3.1 00.

Thank you for using Canon products.

Changes:

This firmware update (Version 1.0.3.1 00) incorporates the following improvement.

Supports EF-S 18-135mm f/3.5-5.6 IS USM, an EF lens to be released in late March 2016. (Please note that the focus and aperture do not function with previous firmware versions.)
Caution:

There is no firmware update for other Cinema EOS products (C500/C300/C100MarkII/C100) and they can be used with the above lens without any problems.
You cannot perform the firmware update using CFast 2.0 cards. Please use a commercially available SD/SDHC/SDXC memory card that is 64MB or more for the firmware update.
The version 1.0.3.1.00 firmware is for updating cameras with firmware version 1.0.0.1.00 - 1.0.2.1.00. If your camera's firmware is already version 1.0.3.1.00, it is not necessary to update the firmware. Once the camera is updated to the latest version, it cannot be restored to a previous version.

Further information:

Download EOS C300 Mark II Firmware Update version 1.0.3.1 00