HyperYagami wrote in post #15008843
One thing that I see though (not limited to 7D) is that once you crank up the ISO the colors become really really dull.
Yes I can PP it and run NR and all and make it look "clean", but it still looks "off" to me.
The higher ISOs definitely rob the image of dynamic range, and the higher up the totem pole, the more saturation you need to push on the image. However much like sharpening, you want to clean the noise first, then saturate/sharpen. I have found that saturating before the NR really creates issues. I actually run picture styles where saturation and sharpness are turned down at high ISOs, and my action then cleans noise, bumps saturation and contrast a bit, and then sharpens.
You can really see it here from the 1D4, ISO 12800, 25600 and 51200. The color dulls dramatically. Ditto on the other bodies, it is definitely something to watch for.