Magic Lantern has released an experimental build of their firmware that offers 4K RAW recording on the Canon EOS 5D Mark III. Also within the build is a Live View mode that shoots at 5796x3870 at 7.4 fps, even at faster shutter speeds. This will produce rolling shutter however. Magic Lantern point out that the current build has “plenty of bugs,” but expect that these will be worked out over time.
The team at Magic Lantern have successfully managed to make Linux run on a Canon SLR camera. So far, it has been successfully tested to work on EOS 60D, 600D, 7D, 5D Mark II, and 5D Mark III. Previously, Magic Lantern had piggy-backed their software on top of the existing Canon firmware.
Wetpixel member David Cheung has reported on the forum that the team at Magic Lantern has managed to create a hack that will allow the Canon EOS 7D to output RAW video files, similar to that now being worked on for the EOS 5D.
Magic Lantern has released a continuous raw recording mode for its hack to the Canon 5D Mark III’s firmware. In testing, the camera has been outputting a 1928x850 recording at 24fps. This gives a continuous recording at a data rate to the card of 90MB/s.