The Magic Lantern team has unlocked RAW video recording for the Canon EOS 5D Mark III DSLR camera. Magic Lantern is a team of hackers releases custom firmware for Canon cameras. They have recently managed to make the camera record 2K RAW videos at 14 frames per second.
Canon 5D Mark III can now record RAW videos at 24fps. The quality of the video files is pretty amazing and might be better than the C300 and definitely better than the BlackMagic Cinema Camera.
Canon EOS 5D Mark III with Continuous RAW Video Recording at 24fps
Canon 5D Mark III used in combination with a CF 1000x card. Now the Canon 5D Mark III users are waiting to get their hands on the hacked firmware. See sample videos and more at EOSHD.