I am having slightly different results when calibrating this screen.
Using Spyder 3 Express with DispCalGui, connecting via Radeon 5570 using dual-link DVI. Letting the screen settle for an hour or so. Setting for 6500K (Daylight), native black/white point, gamma of 2.2, quality set to 'high' (calibration takes about 60 minutes). When doing the calibration, I end up at:
Out-of-the-box:
Code: Select all From the review My calibration
Black level = 0.23 0.38 [cd/m^2]
White level = 225 242.78 [cd/m^2]
Aprox. gamma = 1.92 1.80
Contrast ratio = 978:1 642:1
White chromaticity coordinates
###### 0.2815
###### 0.3378
White Correlated Color Temperature (DE 2K to locus)
8186K (20.2)
White Correlated Daylight Temperature (DE 2K to locus)
8157K (18.9)
White Visual Color Temperature (DE 2K to locus)
6787K (19.8)
White Visual Daylight Temperature (DE 2K to locus)
6904K (18.4)
I then use DispCalGui to calibrate display controls. As I have chosen native WP/BP, I chose Brightness/Contrast like the reviewer did. However, I end up at very different R/G/B settings, having to boost the red channel a lot more than in the review:
Code: Select all From the review My calibration
Brightness: 22 22
Contrast: 50 50
RGB: Manually
• R: 88 100
• G: 84 81
• B: 89 83
Calibrated/profiled results:
Code: Select all From the review My calibration
Black level = 0.12 0.25 [cd/m^2]
White level = 106 116.59 [cd/m^2]
Aprox. gamma = 2.2 (?) 2.18
Contrast ratio = 883:1 472:1
White chromaticity coordinates
###### 0.3123
###### 0.3290
White Correlated Color Temperature (DE 2K to locus)
6524K (4.9)
White Correlated Daylight Temperature (DE 2K to locus)
6524K (0.3)
White Visual Color Temperature (DE 2K to locus)
6348K (4.7)
White Visual Daylight Temperature (DE 2K to locus)
6513K (0.3)
I ran tests several times and got only minor variation.
So which should I depend on? Clearly, my calibration wants a lot warmer white-point than the reviewers.
I am also curious about the wide-gamut, and what it really means. Does it mean that my calibrator is useless?
-k