Finally, those who have still hung on to their Canon 7Ds can heave a sigh of relief:
Unfortunately, it isn’t continuos recording. Here’s Florian (the original poster) on how it was done:
…i can now record 69 frames (1736 x 1156 pixels) and 59 frames of 2.5K (always with transcend 400X CF card).
I took time to test again my Canon 7D with Pelican’s nightly build (Magic Lantern) which gives us the opportunity to capture DNG files for small RAW videos.
Silent mode Pics Burst allows me – for now – to capture 41 pictures in resolution of 1736 x 1156 pixels. But it is also possible to produce DNG files with incredible resolution of 2520 x 1200 pixels via crop mode (5x zoom). So yes Canon 7D can really produce small videos in 2.5K raw ! It’s real !