
You can download the latest application software from our Web site. In order to use EOS Utility software with the updated EOS 5D Mark III, the EOS Utility software must be updated to the latest version.

Certain previous versions of these applications do not support functions which are added by the new firmware. It is recommended that the latest application software*1 be used, once the EOS 5D Mark III is updated to the new firmware Version 1.2.0 (or later) from older firmware (Versions 1.0.7 through 1.1.3). Notes: - Once the EOS 5D Mark III camera is updated to Version 1.3.3 (or later), it cannot be restored to a previous firmware Version (Version 1.0.7 through 1.2.3). When updating the firmware of the camera, please review the instructions thoroughly before you download the firmware. If the camera's firmware is already Version 1.3.6, it is not necessary to update the firmware. Firmware Version 1.3.6 is for cameras with firmware Version 1.3.5. Corrects a vulnerability related to firmware update.


Corrects a PTP communications vulnerability. Firmware Version 1.3.6 incorporates the following fix: 1.
