Originally Posted by rickardl
Will do longer sessions soon with DisplayCAL but I have some questions:
1. I have a Samsung PS64F8500 plasma and I am using the Native colorspace but will there be any benefit from increasing the color setting from 50 to, let's say, 60 to give DisplayCAL/ArgyllCMS "more" to work with?
2. When using i1 Dsplay pro (i1D3) with HCFR, zoyd suggests an integration time of 0.5 sec as the best option. Is there any point in overriding the min display update delay/settle time multiplier in DisplayCAL for getting more accurate readings or is this just waste of "time"?
1) If you increase so much the color then you will have color luminance clipping which is not good for a display performance before the starting the display characterization.
Here are some images I designed to showcase what you are checking when are you looking to some basic patterns all of us are using for pre/post calibration verification, with an RGB Cube Space presentation.
For example, for pre-calibration we are checking using the Contrast Flashing Bars Pattern:
..but it helps if you check additionally the RGBCMY to prevent clipping there also:
...and after the contrast check, you move to color luminace clipping test, using the 7-Color Clipping Bars Pattern to prevent clipping of each color channel (WRGBCMY), this sometimes can be fixed be removing some additionally clicks from the contrast control also (or color slider), you are checking these areas:
2) About meter intergration time, this requires some testing to see which intergration time in seconds provide more stable/repeatable readings.
Use a low Luminace patches , for example 5% Gray / 5% Red / 5% Green / 5% Blue and take 4-5 measurements in continue mode to see your meter repeatability in xyY. A lot of times low intergration times can provide poor repeatability or failed readings.
Test various time settings to see which one is better to use; 0.5 , 0.75 , 1 sec etc..