REVIEW: Eizo S2111W-BK Part 11

Such distribution is achieved using a raw, uneven surface. However, this distributes not just the light that falls that falls directly onto the screen but also the light emitted from it. The more the light is distributed, the less rich in contrast and the less sharp the image display. In addition, when the distributed light waves overlap, a crystal effect can probably result which then seems stronger the larger the viewing angles of the panel.

The flash is distributed more strongly by the Eizo S2111W-K (left) than by the ViewSonic VP2330b (right). Thus, the "crystal effect" is more noticeable in the Eizo monitor than in the ViewSonic model.

This theory – namely, that the effect depends both on the angle and on the movement- was also proven by our observations. The nearer to the panel you move your head, the more noticeable the effect.

In order to clarify the light distribution, we took a flash photograph of Eizo S2111W-K beside a Viewsonic VP2330wb with a MVA Panel. The VP2330wb has a tangibly smoother panel; surface. This means that it has less of a sparkle effect and that the image seems sharper, but the monitor also reflects more of the ambient light.

The VP2330b does not contain a glossy panel, but would rather fall into the second reflection class. The manufacturer determines which reflection and light distribution characteristics an LCD has through the choice of the front panel as well as its coating; the choice is independent of the panel technology used.

Measurements and calibration

The Eizo S2111W-K is the first monitor to have to withstand our new testing. The results are interesting, especially for graphics and video work. They are less relevant for office use and gaming, since the subjective impression here is the more important.

First, we measured the maximum colour space of the LCD and compared it with the ISO coated printing colour space and also with the sRGB colour space. Initially, we had to test with the brightness and RGB values set to 10 percent.

Colour space comparison

sRGB is the standard Internet colour space and is also standard HDTV as well as being almost congruent with PAL/SECAM TV. Compact cameras and beginners’ reflex cameras (JPEG) as well as other devices work in sRGB and most photo laboratories develop exclusively within this colour space. Whenever a device or graphics file lacks a profile, Windows assumes sRGB.

Many colour printers, too, work with an sRGB profile on normal. Therefore, the sRGB colour space is more important to "normal users" as opposed to the ISO coated printing colour format. The following comparison outlines how well the Eizo S2111W-K can cover the sRGB colour space:

The coloured box shows the monitor’s colour space; the grid shows the sRGB colour space. The monitor cannot display colours outside the coloured box. Display is three-dimensional and the light colours and white appear to the front in the left picture. The right-hand picture shows the view from the back – here, the dark colours and black are towards the front. At those points where the coloured box lies outside the grid, the colour space of the monitor is larger than sRGB; in those places where the grid juts out over the coloured box, the monitor’s colour space is smaller than sRGB. The illustrations can be clicked on for an enlarged view.

Eizo provides two colour profiles on the CD included with the monitor: one for use at a colour temperature of 5000K (D50) and another for use at 6500K (D65). Interestingly, the D65 profile almost exactly corresponds to the sRGB standard profile, whereas the D50 profile is very close to the AppleRGB profile.

Many beginner cameras offer the AdobeRGB colour space as well as the sRGB colour space, the former being also used in professional image processing. AdobeRGB includes more green and turquoise tones in order to reproduce the possibilities of modern printing better during processing.

Since the Eizo S2111W-K does not quite cover sRGB, however, a comparison with the larger AdobeRGB colour space would not make any sense. This is not necessarily a disadvantage, since larger colour spaces also bring larger gradients. Also, as a rule, only extremely expensive and high quality devices are capable of displaying larger colour spaces. Some examples would be the CG series by Eizo or NEC’s Spectraview monitors.

Two-dimensional comparison of the monitor’s colour space (black line) with the "ISO coated" reference colour space used for offset printing (white line). Click the illustration for enlarged view and explanation.

<< < 9 10 11 12 13 14 15 16 > >>

No Comments available

you have to be registered and actual logged into the forum to write comments.
go to the forum!

Advertising