REVIEW: Eizo S2111W-BK Part 12

A comparison with the ISO coated colour space for offset printing is also interesting, since this generally represents the minimum that ink-jet printers can achieve. Indeed, many modern ink-jet printers and other printing technology can cover an even larger colour space.

We rate the Eizo S2111W-K’s coverage of the ISO coated colour space Eizo S2111W-K as good. Overall, the LCD offers a good colour space and sufficiently covers both the sRGB and the ISO coated colour spaces. As a result, the monitor will serve most users well. A rating of very good would only be awarded to a model with a particularly large colour space, e.g. the NEC 2690WUXi.

Colour deviations and calibration

Whilst measuring the colour space of the monitor, we also checked how accurately the Eizo S2111W-K reproduced the colours it is displaying. In this regard, we made three comparisons. Firstly, we compared the sRGB colour space with the default settings on the LCD.

Secondly, we compared the same with the monitor’s sRGB mode and lastly, we compared our calibrated settings with the sRGB standard profile. The first two measurements were intended to show how well the monitor is suited for sRGB display without calibration, since most users do not have calibration hardware at hand.

Since the default settings and the sRGB mode on the Eizo S2111W-K differ only in the colour temperature setting, we shall only give those results from the tests in sRGB mode here. The colour temperature of the default settings is too warm at 6100K, but the average deviation from this is a slight bit lower.

The colour deviation is given in deltaE 94; we measured numerous grey levels, as well as the primary (RGB) and secondary (CMY) basic colours. A deltaE value of 1 represents the smallest deviation that the human eye can perceive.

Most people recognise a difference in colour at a value of 3 or more. However, our eyes are more sensitive to green and grey tones. The average deviation should be under 3 dE, the maximum under 10 dE. Up to this value, colours are still sufficiently similar to each other.

Comparison of the sRGB profile to the sRGB standard:

SRGB profile	sRGB standard	Measured
White point / Kelvin	6500	6300
Brightness / cd/m²	No details	478
Black point / cd/m²	0,00	0,55
Gamma / Average	sRGB (~2,2)	421
Contrast / x:1	No details	868

Some deviations of the sRGB profile are visible; especially for grey tones, the LCD is none too precise when the profile is chosen. The deltaE values all lie under the critical value of 10 dE, but are certainly not remarkable at an average deviation of 3.2 dE. We then checked how well the Eizo performs with regard to colour fidelity after calibration.

Here, the colour temperature and gamma value could be modified directly via the OSD on the hardware level. The user should be aware that the Gamma curve of the sRGB standard is not exactly equivalent to Gamma 2.2, but is rather somewhat lighter in the darker grey tones.

As a result, we selected a Gamma value of 2.0 in the OSD, since this would be closer to the sRGB Gamma because of the iColor software. In addition, the following calibration values were used: Brightness 14%, Saturation 0, Red 98, Green 93 and Blue 100.

Comparison of the calibrated profile to the sRGB standard:

Calibrated	sRGB standard	Measured
White point / Kelvin	6500	6500
Brightness / cd/m²	140	140
Black point / cd/m²	0,00	0,16
Gamma / Average	sRGB (~2,2)	2,18
Contrast / x:1	max.	874

Comparison of the calibrated profile with the sRGB standard

Profile accuracy of the Eizo S2111W-K directly after calibration

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