Magic Lantern will soon bring a new firmware update for Canon 5D Mark III to enable RAW video output is now available, With canon usual firmware loaded in the 5D Mark III you get video as a compressed H.264 stream, rather than the pure Raw video.
A Magic Lantner forum member (laurenco) shouted that he was able to get 1928×902 RAW output, but video stops after 700 frames due to limited buffer,
I did a quick test in Raw mode. I wanted to see how much higher I could do above 720p. I tried 1928×850 and 1928×902. I think it was 902. 902 the buffer would fill up and video stops after 700 frames or so. At 850 I am able to get continuous recordi
Now its true that Third-party firmware hack Magic Lantern has managed to do something absolutely amazing,
Download the Alpha Version of 5D Mk III ML firmware
The first video is taken with 5D Mk III – native compression @ 1080p x 24 fps and the second taken with the new Magic Lantern firmware – Uncompressed RAW video.
source http://bit.ly/15HN4od
