Originally Posted by djams
They are considerably different. During my tinkering, I entered csamos settings and measured the grayscale, primary and secondary colors. What I found was that all the grayscale charts were notably off-target on my TV, but interestingly the colors were spot on.
That's a good observation. Also, csamos and I used a different approach to adjusting the RGB - he noted when he originally posted his settings that he does not adjust green (and this is what "calibration for dummies" recommends as well). On my TV though, I had to adjust green to get the correct Y value at each IRE - I couldn't get close any other way.
I was just comparing csamos, your settings and my Expert2 Sony S550 settings which were the most "neutral" if you will as far as grayscale in my case. What I see and would like to ask is if you noticed that beginning at about IRE 50 and below, on my TV R,G,B adjust gets a more tricky. And, as I remember it, I had to go back and forth between neighboring IREs to get it right. I remember I could click red up one click and it was too much, one down and now green needed adjustment. I'm guessing by just looking at your settings, that you also possibly saw this. I too could not use the "zero green" calibration method, but blue was the heavy hitter on my TV.
On top of that, it also seems that depending on what of 4 Blu-ray players I would connect up to the then calibrated input, gray scale and luminance would be somewhat different when checked with AVS HD 709 or Avia. Also, I would get it spot on, run a sweep several weeks to months later, and find it was slightly off. That was within the first 1,000 hrs or so on the TV. Since January, I checked it again a few times and found it seemed to be spot on.
So, I guess I'm saying, there may be a longer 'break in" period than I would have expected. I don't know what else would account for it. The TV shouldn't really have much, if any, of a break in period.
Anyway, I'm just saying. Tweaking is something like eating potato chips. Unless you don't like them.