Same with video: The h.264 (or its AVCHD variant) stream coming from Canon’s DSLRs is a highly compressed video which loses some of the data captured by the sensor. The compressed file has less resolution, more artifacts and reduced dynamic range. Or B – manipulate the photo in a way that loses some of that data, then compress it and save it as a JPG file. When the camera converts captured sensor data to an image file it can take one of two paths: A – Save the data almost as is came from the sensor to a RAW file. Raw video to regular compressed video is what RAW images are to JPGs. It provides a great toolbox for cinematographers using Canon SLRs. Focus peaking, Zebra lines, Audio meters and AGC-disable and many more. It is supposed to be fully safe to use, fully reversible to the “regular” firmware and it adds various features to Canon DSLRs which are not there by default. Magic Lantern is a custom firmware not developed by Canon. What is Magic Lantern, And What is RAW video

While this is not an official release by Canon, and so far I have not seen any response from their PR department or from other reps, I think that this is the best thing that Canon could have wished for. If you are living anywhere on this little planet of ours and are subscribed to any of the blogs about photography, videography, HDSLR, or cinematography you are probably aware that the Magic Lantern team has a firmware that can shoot RAW video on a Canon 5Dmk3 in up to 3592×1320 resolution.

Magic lantern canon 5d mark ii raw size