Looks like Magic Lantern, the people who hacked some of the Canon HDSLRs have something nice for Christmas. It’s a hack that is said to enable a HDR mode!
Here’s the description from YouTube:
The workflow is a bit confusing, even with the instructions they give upon download. (..)
The clip was made by the Neumann brothers who also brought us the giant HDSLR rig video.
Here’s the technical explanation and a better example:
From the vimeo description by [email protected]:
Magic Lantern is a custom firmware add-on for Canon dSLR cameras. It is not a hack, or a modified firmware, but it runs alongside Canon’s own firmware, booting from the card every time you turn the camera on. The only modification to the original firmware is the ability to boot software from the card.