BTW how do you measure APL and Luminance to get these % numbers?
My plan is to improve my APL pattern eve further by:
Measure the luminance of a small white square in the middle of the screen while a movie plays in the back,
I will take several luminance measurements of this square throughout several scenes and different movies.
Now I will average the luminance readings of this square to get a certain number.
Now I will play my APL pattern with the same white square in the middle and choose the most accurate grey background to match the average luminance of the white square that I measured on top of the movies.
This would give me the most accurate average of grey shade for my background.
Although every plasma TV has a different APL+ABL behavior, a typical movie APL will trigger some ABL in any kind of plasma.
This sweet spot is where I'm anchoring my new APL white balance calibration pattern.
The anchor is an average APL of actual movies.
The new pattern should be just the perfect balance between APL and ABL to calibrate a Plasma for Movies or TV.
Apparently the value Photoshop gave me as the average grey shade of many scenes combines was spot on in terms of Luminance.
So if anyone cares to download my 16-235 SPL slides can go here: SLIDES.
The photo I used to get an average of the background of my APL patten: