Firmware Version 1.3.6 incorporates the following fix: 1. Corrects a PTP communications vulnerability. 2. Corrects a vulnerability related to firmware update. Firmware Version 1.3.6 is for cameras with firmware Version 1.3.5. If the camera's firmware is already Version 1.3.6, it is not necessary to update the firmware. Download the official firmware from Canon’s website when performing a camera firmware update. Version 1.4.2 is available for download. EOS 5D Mark III* 1 LEARN WITH CANON. Discover great new ways to enjoy your products with exclusive articles, training and events. Find support for your Canon EOS R5. Browse the recommended drivers, downloads, and manuals to make sure your product contains the most up-to-date software. Installation: 1) Format the card from the camera. 2) Make sure you are running Canon firmware 1.2.3. 3) Copy ML files on the card and run Firmware Update. Uninstallation: 1) Run Firmware Update from your ML card. 2) Follow the instructions. What's hot: download 5d mark ii firmware 2.1.2 on mac os x 10.8. 09-08-2013 07:07 PM. I have a mac with OS X 10.8 (Mountain Lion) and I'd like to update firmware for a 5D Mark II to rels 2.1.2 but can't find web-site. When I look on the Canon site, it recognizes that I have 10.8 and says " There is no firmware for the OS version you selected." Description Long. 1. Corrects a PTP communications vulnerability. 2. Corrects a vulnerability related to firmware update. Firmware Version 1.3.6 is for cameras with firmware Version 1.3.5. If the camera's firmware is already Version 1.3.6, it is not necessary to update the firmware. When updating the firmware of the camera, please review the EOS 5D Mark III Firmware Version 1.3.5 [Windows] Changes in the Firmware Preparations for the Firmware Update: Windows Notes: *2: EOS Utility *2: Digital Photo Professional A: Yes, the following improvements from the previous Versions are included: Changes in Version 1.3.4: Changes in Version 1.3.3: Changes in Version 1.2.3: Changes in Version Firmware Version 1.3.1 incorporates the following enhancement: 1. Updated language displayed in the menu to improve readability. Firmware Version 1.3.1 is for cameras with firmware up to Version 1.3.0. If the camera's firmware is already Version 1.3.1, it is not necessary to update the firmware. Notes: Users manual in the WEB is updated 01-27-2021 06:49 AM. Hi! I'm testing EOS Webcam Utility both on PC and Mac with my beloved 5D Mark II. I find curious that it's working properly on Windows 10 but not on Mac OS Big Sur (I'm using the Catalina version, which seems to be working for other users here in the forum). Firmware Version 1.3.3 is for cameras with firmware up to Version 1.3.2. If the camera's firmware is already Version 1.3.3, it is not necessary to update the firmware. Q&A: Preparations for a firmware update: After the downloaded compressed file (.dmg file) is extracted, a firmware folder is created. *Extracting the downloaded file: oDWgfcr.