REVIEW: Iiyama ProLite B2206WS-B1 Part 8

ISO Coated: 92 % coverage

The colour space of the monitor covers only 92 percent of the ISO Coated colour space.

sRGB: 89 % coverage

When calibrated, the monitor only manages 89% coverage of the sRGB colour space.

The colour space is really small and is similar in form to the sRGB colour space. The clearest weakness is for blue, where the monitor is missing a good chunk to be able to display the sRGB colour space completely.

For a model in this class, larger colour spaces do not need to be considered further, since the monitor cannot cover these.

The small colour space of the 22-inch model is in no way a disadvantage as long as it is only used for games, films and naturally all non-colour critical work.

If you edit photos and have them developed, though, it may happen that the developed pictures are a touch more powerfully coloured than what you had seen on the monitor before.

Next, we examined the colour accuracy, i.e. the absolute precision with which the colours are matched.

deltaE deviation

Explanation of deltaE deviation: Deviation in colour values is measured in deltaE 94 (dE). Several grey gradients, the primary (RGB) and secondary (CMY) basic colours are measured. A deltaE value of 1 represents the smallest difference in colour which the human eye can perceive.

Most people recognise a difference in colour from a value of 3. However, our eyes are more sensitive to green hues, so even smaller differences are noticed here. The average deviation should be under 3 dE and the maximum should be under 10 dE. Up to 10 dE, two colours are still sufficiently similar.

Comparison of factory settings with sRGB standard

Factory setting	sRGB standard	Measured
White point / Kelvin	6500	5598
Brightness / cd/m²	140	294
Black point / cd/m²	0,00	0,30
Contrast / x:1	Native	979
Gamma / average	sRGB (~2,2)	2,67

In the factory settings, the image is considerably too warm at 5598 Kelvin. The average value of 4,8 deltaE is acceptable, whereby the strong deviations in the grey hues from the target value are already visible. At 979, the contrast is very good and only slightly lower than the manufacturer’s indication of 1.000:1. The gamma value is somewhat too high in Gamma mode 1 at 2,67, as already mentioned.

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