To get your 5D to do RAW please follow our steb-by-step guide: c5d.at/1o4
You need: Raw2dng, Quicktime 7 and Photoshop.
Here's the related post on cinema5D:
cinema5d.com/?p=18065
5D Mark III at B&H: goo.gl/EXADC
Cast:cinema5D
Tags:5D RAW, 5D mark III, raw, 14bit, 24fps, workflow, editing, tutorial, magic lantern and grading