Originally Posted by JazzGuyy
Is 1 click away really not much or insignicant? I don't know but I do know that these settings interact and that changing two different settings 1 click may have different impacts. What no one has identified is exactly what happens when several settings are only changed by a click or two. The difference could be minor or it could be more substantial, especially when interactions are taken into consideration. I would like to hear some comments from someone who understands the degree to which seemingly minor changes can affect the picture, especially with regards to the interactions of the settings. Without some evidence, I am not as sure that what you call minor adjustments are as insignificant as you think they are. They may be; they may not be.
By the way, I did break in my set using D-Nice's break-in procedure. I also had used his settings for Pure. I did not have ControlCal and hence had not activated the ISF modes for my set though.
When I had my set calibrated by a pro, he did say to me that his instruments showed that the picture was too green and the brightness settings were off in Pure mode with D-Nice's settings. Pure mode looked better and ISF Night looked even a little better. The calibrator copied the ISF night settings to Pure though ISF Night is a tiny bit brighter.
You'll likely get varying responses to your questions.
So here's mine: Setting "differences" as close as the one's above will not be perceptible to the average human being IMO. A very knowledgeable expert such as a pro-calibrator might
be able to pick up the subtle difference but even that pro could not tell you in a blind comparison which one was the more "accurate" picture. Based on my experiences making changes to CC, I suspect only a high quality meter will be able to tell the difference between minor settings of only a click or 2 on one or several settings.
I do find that changing all 10 gamma settings (by even 1 click) is marginally perceptible but only slightly. I say this because I've experimented with ISF Night and ISF Day (now that I know they are identical templates) and tried to see visible differences between the 2 modes when they are set to identical settings with only minor changes such as a single click on several settings.
As it is, D-Nice's settings for ISF Day and ISF Night (151 settings) are essentially identical except for Contrast (Day 38 vs Night 22) and Gamma (10 "Day" settings at -1 vs 10 "Night" settings at 0). And even with a 16 pt difference in Contrast, which is clearly perceptible to most eyes in term of brightness, the calibration charts he provides are nearly identical except for Delta E and perhaps grayscale.
By using ISF Day and Night (with identical settings but the one's you're testing), you can watch a program or even a static picture and quickly switch back and forth to see if there are PQ differences that can be perceived. Even with very focused attention, there simply is no level of PQ difference that I've been able to see with very minor changes or even multiple minor changes. Perhaps a meter will tell the difference, but I firmly believe a human eye can not tell the difference with such minor differences.