I bought it yesterday, installed on the 5D Mark II without problems. I'm not sure yet, but it seems to output some really smooth footage. Note that I'm using in-camera H.264. Cinestyle appears to have less headroom both in the shadows and the highlights. For example, the Cinestyle footage of a specific scene had blown highlights while C-LOG preserved them just fine and had cleaner shadows.
I found that C-LOG works nicely with magic lantern when I set the zebras to appear after the brightness level of 235 (about 93%) which seems to be the maximum value allowed by C-LOG. This way I can always know if I've overexposed anything.
I was just thinking, why should the highlight values be limited at 236/255? Is it the nature of log?
