I don't think it matters what you set those to before calibration. The 31/90 is what WinDAS will set the monitor to after calibration (that's what I meant by "should be"). But I believe these values are for the FW900, and that those values may differ depending on tube.
If memory serves, I consistently get 87 nits in 6500K mode fresh after a WinDAS calibration where I hit all the requested targets (excepting the G2 which I tend to set lower than WinDAS recommends).
Can't recall if I've tested that with full field white as well as partial field (full field can...
nice. I'll see if I can dig something up for you to test. I've written to the LUT directly using psychtoolbox with MATLAB before, but there may be a simpler way - I think flod may have written a small app, I'll see what I can find.
possibly, but you'd probably need some instruments to probe the circuits. Not sure if there's a simple way to check through software, though I might be wrong.
You could also possible use a multimeter to measure the voltages coming out of the output, and test the precision that way.
Ok that should provide similar results, though I always get much tighter results than you when I use the command line approach (not sure if this is because of the command line approach, or something else).
Looking pretty good! How's the image quality?
I'm sure you could bundle the information in the cal file into the icc file, but not really understanding your use case.
Why not just stick with the cal file you've just created? I also sometimes create a separate cal file for 2.4 and 2.2, and...
Looks like you're honing in, gj.
See what the measurements look like after an argyll lut correction, you'll probably be able to get it dialed in nicely.
As for how to improve the low end... on the one hand, your delta Es for 10 is very good, despite the blue channel being out of balance, so it...
that's kinda bizarre. And you can visibly tell that the screen is getting dimmer when the colorimeter reports a decrease in luminance, right?
It might not be an issue anyway, since I think the last step is for sRGB mode which we don't use (at least I don't).
Another question: Did you ensure...
I don't believe the contrast brightness settings before calibration have an impact.
In your first image, the target is 82 cd/m^2 (nits), yet your real time luminance value shows 104.77 nits, and the slider in WinDAS is at max. Why aren't you lowering the slider so you hit the target value?