Originally Posted by Chad B
Yes, some significant differences in the white balance, 2 and 20 point. Other things are more consistent but everything interacts so choices made with one control can impact another. There are common trends in things like brightness, contrast, color and tint, but often the numbers aren't exactly the same. Brightness interacts with the white balance adjustments significantly. Sharpness is one thing that is consistent from sample to sample; the controls hardly do anything even at extreme settings, so I just leave them at default.
Some trends are:
ISF Expert mode
contrast in the 90s, but this is only best if you are going to calibrate the 20 point adjustment with a meter; otherwise, contrast around 80 seems to give a better gamma
brightness in the mid to upper 50s (highly dependent on white balance adjustments)
color at or just above default
tint at default or slightly toward green
CMS all 0 (major artifacts caused by adjustments)
Did you try to adjust the CMS using one of the latest firmware versions ?
I believe the CMS has changed in one of those firmware versions, not fixing it totally but is much better.
On my firmware version (latest european version), I adjusted the CMS and I didn't noticed any (visible) artifacts on any content I watched. I could improve some of the colors from a dE94 of around 3 and 4 to around 1 (Red and Blue).
What I really noticed - and that was only after I run a Color Saturation test, was that although 100% Magenta had a 0.6 dE94, the 50% and 75% Magenta saturation CIE coordinates were almost the same as the 25% saturation, making errors for those two greater than >10dE94...
Only way to fix that was to reset the CMS Magenta to 0,0,0.
All remaining colors did not had this behaviour, in fact they seem very accurate. Max dE I have now is 3.2dE94 on 75% Cyan.