
All recording can take place on CF cards. Since the 5D mark III has two card slots, we recommend running Magic Lantern from a small SD card that stays in the camera. This also means the autoboot feature does not work yet – you will have to load Magic Lantern every time by running Firmware Update from Canon menu. It will not attempt to change any Canon settings or do any kind of permanent firmware modification. Magic Lantern 5D Mark III First Alpha Features

While the first alpha build of Magic Lantern for the 5D Mark III doesn’t quite offer all the features of version 2.3 on the 5D Mark II, it still presents some features that many HDSLRs want to see. Magic Lantern 2.3 recently launched for other Canon DSLRs and delivered some impressive and stable new features. The first public alpha build of Magic Lantern firmware is now available for the Canon 5D Mark III.

The Magic Lantern crew have been knocking it out of the park lately.
