I have spent many hours tinkering with pattern discs.
- and more recently the GCD calibration disk
I have followed the Curtpalme - Calibration Guide for Dummies
I have a Sony xbr65x850c television, which as far as I know is full array dimming (i don't think it's local dimming?)
I have disabled all software enhancers.
I just wanted to confirm what pattern do I use to get the High Gain (80% IRE) and Low Bias (30% IRE)? Most recently I read that you should be using an APL pattern, so I tried the 5% APL patterns on the GCD disc. http://www.spectracal.com/Documents/...20Patterns.pdf
What I am finding is that when calibrating 80% and 30%, the 30% Blue Bias is nearly maxed to achieve a deltaE < 1.
When I run the low level clipping pattern, the flashing bars appear to have a BLUE tint. When I ran a blue gradient pattern, you can clearly see a dividing line at one point (not a smooth transition).
- Am I using the correct patterns for this type of TV backlight? What should it be (APL/WINDOW/FIELD)
- Is my colorimeter not meant to dial in the 30% IRE and below? Should I NOT try and calibrate the 30% or accept a higher deltaE? I understand colorimeters are not known for low light sensitivity. I have a Colormunki Display. I would hate to hate to have to buy a Display 3 since I already have a Colormunki Display.
- After I set the 80% and 30%, do I use a gamma pattern window/field/apl to use the 10 point? (10 point controls are RGB on this set).
I was targeting a gamma of 2.2 (power law), which seemed to track well, but blacks seemed crushed when watching a video. Maybe I just think they're crushed...
I always seem to have a hard time with my reds at 100% IRE. RED Gain (Cutoff i think Sony calls it) when I calibrate at 80% IRE is at MAX. I have read many times that it could be too high of contrast, but I have tried watching x/y values change while adjusting contrast (100% IRE) pattern but nothing seems to react until I'm 50% max contrast... at which point the "white" is basically gray.
I can't post any images right now but if someone can give insight based on the above, any help would be appreciated.