Originally Posted by skschatzman
Not all video player hardware devices are accurate. You would need to use a specialized piece of hardware that analyzes the HDMI signal of those devices to verify the accuracy. Some ISF calibrators offer this service for a small fee as the equipment is usually too expensive for average consumers.
Looking forward to your findings when you report them.
So I tried to calibrate the ifs brightroom under real bright room conditions and ifs darkroom under real dark room conditions using the TV's media player running the test patterns from a USB stick.
- OLED = 80, Contrast = 98, Brightness = 54. Using the USB in TV, I cannot set White Balance, Gamma, colour gamut or Peak Brightness. They are greyed out.
How come Brightness 54? I followed the guide on chapter 2 APL clipping http://www.w6rz.net/avshd709/Patterns-Manual.pdf
and tried to get some compromise from testing black clipping.
- OLED = 60, Contrast = 97, Brightness = 53. Similar as the ifs bright.
Gamma is 2.2 on both.
Black level is set to auto.
Peak brightness is off.
Using the black clipping test pattern, in order to not clip values above reference black, I have to raise the brightness to 53 while using ifs darkroom settings for SDR content. Then I load a 100% black image but I see the panel is illuminated (non uniform illumination, visible in a dark room only). I was expecting the pixel to turn off, as the image is 100% black, RGB 0,0,0.