Originally Posted by zoyd
yes, ANSI white is higher for 20 cell on D series, please verify for E series
. Don't know anything about white scene instabilities, they aren't present on D series. I think both D and E series are best calibrated with 75% amplitude/ 75% saturation using windows with constant APL (GCD) or constant energy (AVSHD small APL).
Measured those with same peak white 120cd/m2 (35ftL) from normal IRE100 window with AVS HD 709 (At later I set peak white to ~125cd/m2 / 36.5ftL with contrast setting 85)
With cell light 13 and contrast 98 ANSI white was ~78cd/m2
With cell light 20 and contrast 83 ANSI white was ~83cd/m2
So yes, it gives little more light out with cell light set to max.
What´s the difference with D8000?
I have always calibrated plasmas both grayscale/white balance and color just with normal windows, now tried calibration with 10% APL Gray & 100% APL Color small windows.
I wonder how much white balance was off with APL since it was almost perfect with non-APL grayscale windows (Average dE 1.38).
First measured (just to check after that cell light/contrast setting) with normal windows and it was just great...after that 10% APL Gray, at IRE50 dE was over 7
and all over much worse than with non-APL gray patterns.
I managed to get it calibrated, however ITU-R BT.1886 gamma tracking needed some extra work and couldn´t get it even, there´s still few small bumps.
Colors also needed some fine tuning with those small APS windows.
Overall it looks better when calibrated with APL
It was late at evening and was tired, I didn´t figure out that 75% amplitude/ 75% saturation
With AVS HD 709 there´s 75% color APL test patterns where also gray is 75%, should I use that? That is different than 75% saturation.
Should I then change HDTV - REC 709 (75%) also?
Tried those every combinations but it just measured weard readings.
Also tried set that red 75% saturation where it belongs but it affect negatively, think it´s better like it´s now. Maby it settle after break-in. There´s max 30 hours of usage now.
It´s not perfect neither with HDTVtest review
, So maby I should stop here
Here are those two calibrations, with normal windows (cell light 13, contrast 98) and APL windows (cell light 20, contrast 85).
Samsung PS64E8000 calibration.zip 105k .zip file