Eizo CG245W Review

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Quicklinks:

[CG245W at Eizo website]

[CG245W at Chromix website]

Contents

Overview

The CG245W is a new wide gamut monitor from Eizo that features an automatic recalibration ability. It has a very wide color gamut, encompassing more than the AdobeRGB gamut, it has good uniformity across the screen on all colors, a top notch IPS panel giving a wide viewing angle, it can handle moving pictures with speed, and it also has a DisplayPort input which is a vital link in the chain of signal processing which makes it possible to view images in higher than 8-bit resolution. It has what is becoming the usual assortment of desired features on high end displays: It is a wide screen (20 inches wide) which allows for 2 sheets to sit side-by-side in your display area, has high-bit internal color processing to reduce banding.

But beyond the usual excellent specifications we're used to seeing on an Eizo, what really sets the CG245W (and its big brother, the CG275W) apart is the ability to calibrate itself using its built in colorimeter. If you think about it, this is going to mean more to the industry than merely saving you the step of hanging a puck on the monitor every month. It can be set up once and then it will automatically recalibrate your monitor from then on - even when you're not around, when you're going home for the day, or in the middle of the night. This also opens up the possibility that displays can be maintained remotely. Large companies can ensure that every monitor on every work station is calibrated.

Self-calibration with Swing Sensor

Built into the top bezel of the display is a sensor for calibrating the display. This swing sensor is programed with the Eizo ColorNavigator software and swings down to take color measurements about an inch from the top of the screen. It's not clear what kind of sensor this is, but it has been used for some time on Eizo's line of displays for the medical market. In the high end graphics market, this first-of-its-kind sensor now makes it possible to ensure that a display is automatically calibrated with or without any user intervention. The ColorNavigator settings allow you to use the internal swing sensor or any of the regular external sensors that ColorNavigator supports.

Corelation Utility

Eizo recognizes that there might be some variation in accuracy with this sensor, so they provide a "Correlation Utility" program which measures a series of patches using the swing sensor and your regular colorimeter or spectrophotometer at the same time. This way any difference in the measurement in the swing sensor can be compensated for. Eizo also recognizes that measuring so close to the top edge of the screen is less ideal than measuring the center of the screen. So they have compensation for that as well, which includes their very good uniformity equalizing processes. One of the purposes of the Correlation Utility is to be able to have this display match other displays that don't have the swing sensor (in other words, to be able to calibrate using the same sensor as on other displays.)

Color Gamut

As is becoming standard on most new Eizo's, the CG245W has a very wide gamut which includes all of AdobeRGB according to my tests. The gamut volume will vary depending on the software and instrument used for measurements. The Eizo specifications claim 98% of the AdobeRGB gamut - but in my testing it's basically all there and then some.

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