Thanks for posting kevi... for giggles I downloaded your file and opened into photoshop with the latest ACR.... ACR automatically sets color noise at 25 and detail at 50 standard... you can drop 25 to 0, but surprisingly, the "color noise" that sambai was referring to, really doesn't change that much if any from 0 to 25... there is plenty of noise, but it's fine noise that only goes away when the luminance slider is played with, and that doesn't fully disappear until it's around the 50 mark.. But it is leaps and bounds above what we had to play with before... and this is even taking into account that ACR is STILL buggy with 5d3 files and have been proven so time and time again. Once adobe gets that straightened, it will be even more consistent and will render files even better. So yes, he is right that some NR was inadvertently applied by ACR, not you, and that you can knock it from 25 to 0 and get more noise, but he is wrong about how much noise and what kind of noise... Minimal difference in color noise between 0 and 25 and it is luminance noise more than anything else, which is to be expected, and cleans up quite nicely.