Posted on February 6, 2014 By Art Feierman
There are two color gamut settings (see the CIE charts), Wide and Normal. However, there is very little difference between the two other than Green actually being less accurate on the Normal setting. As a result, colors don’t change much going from one gamut to the other. Red is oversaturated in either gamut, but is correctable with the CMS. Blue is off with both gamuts, but it’s not really possible to fix it completely with the CMS.
Using the CMS with the Wide gamut, I could get most of the data points pretty close, with blue being the furthest off. Delta Luminance (luminance error) was very low for the three primaries, as was Delta Hue for the three secondaries.
Likewise, absolute luminance was well balanced for all three primaries, whereas by default, blue and red were much higher than green. By default, yellow was off a bit in hue, but that was easily corrected in the CMS.
The final result yields a pretty good CIE chart, with blue being off the most, though not noticeable with regular viewing material. Some may find that skin tones lack a little red (especially compared to any of the default modes where everyone looks sunburned). If so, adjusting the master Tint control from 0 to -2 can add a little pinkness back to the cheeks.
Click to enlarge these charts, pre- and post-calibration.
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