Main Builds Magic Lantern I have a Canon 5D Mark 3 which is currently running firmware version 1.2.3. I have just established that the latest firmware is version 1.3.6. There are 3 other firmware versions in between mine and the latest one. Can I update directly to version 1.3.6 or do I need to convert to 1.3.3 first, then 1.3.4 and then 1.3.5? (The following is the history of past firmware updates.) Changes in Version 1.3.3: 1. Improves the camera's connection compatibility to a PC while using a USB 3.0 or higher compatible cable. 2. Fixes an issue, in which self-timer shooting cannot be performed in Firmware Version 1.3.1 and 1.3.2. 3. Download Canon EOS 5D Mark III Digital Camera Firmware 1.2.3 for OS Independent Softpedia >Drivers >Digital Camera / Webcam / Camcorder >CANON > Canon EOS 5D Mark III Digital Turn on the device and press the menu button. Navigate to “Set-up” and select “Firmware ver. x.x.x” then use the quick control dial to start the update. When the process is complete, a message will be displayed. Turn the camera off and remove the battery for at least two seconds. Format the memory card before using it again. I started using my Canon 5D Mark II (purchased in 2007) after several years of non use. It was working fine and actually bought AC battern adaptor and astrophotography adaptor for it. Current firmware is vers 2.0.9 . I saw a free firmware update on the Canon site for ver 2.1.2 but when the camera completed the upload it indicated file read failure. Canon 5D Mark iii Raw images. 01-19-2020 01:20 PM. The question is are there any settings in camera that will affect the raw file when editing in Lightroom. Eg) setting the picture style. White balance, auto lighting optimizer. After I import the images and apply my basic starting settings to the images Canon USA has just released a new firmware update for the Canon EOS 5D Mark III. Firmware Firmware Version 1.2.3 incorporates the following improvements and fixes. 1. Fixes a phenomenon in which the flash may not fire depending on the timing of when the shutter button is pressed. 2. Fixes a phenomenon in which the … XXzKIR.