I've been playing with Magic Lantern RAW and looking at different bit-depths, and after all the conversation in the BMPCC thread (and the thousands of 8-bit vs 10-bit videos) I got the impression that bit-depth was something quite important.
Here's the thing, I can't tell the difference between 10bit, 12bit and 14bit.
I recorded three ML RAW files at identical resolutions and settings, just the bit-depth varied. I converted them in MLV App to Cinema DNG (lossless) and pulled them into