F or those who care about colour accuracy, Eizo’s ColorEdge range of monitors has been stretching overdrafts and flexing credit cards for the past 11 years. The latest addition to the range, the ColorEdge CS240, aims to be a little kinder to your wallet.
In these days of 4K monitors and high-DPI smartphones, the CS240’s 24.1in, 1,920 x 1,200 panel may sound rather ordinary. However, it’s anything but, and Eizo has spared no expense in the areas that matter.
The IPS panel is lit with a wide-gamut GB-R LED backlight –something of a rarity at this price –that allows it to cover a claimed 99% of the Adobe RGB colour space. The panel also supports full 10-bit colour input via the DisplayPort and HDMI inputs (as ever, the DVI connection is limited to 8-bit colour), and the real clincher is that hardware calibration is supported too – that is, as long as you don’t mind shelling out for a third-party colorimeter such as the X-Rite i1 Display Pro.
You really don’t need to worry about buying that X-Rite right away, however, as the ColorEdge CS240’s image quality is stunning from the get-go. Firing up the monitor’s factory-calibrated Adobe RGB mode saw the Eizo turn in an absolutely immaculate set of results. We measured the panel as covering 99.7% of the Adobe RGB colour space, bang on Eizo’s claims, and colour accuracy was sublime, with the panel achieving an average Delta E of only 0.45. The 743:1 contrast ratio is pretty good by professional monitor standards, too, and the only (minor) disappointment was that the colour temperature was a little way off the 6,500K ideal: we measured it at 6,801K.
Switching to the CS240’s sRGB mode revealed an equally impressive set of numbers. The calibration covered 99.3% of the sRGB colour space, and did so with a highly colour-accurate average Delta E of 0.46. Contrast remained almost identical at 743:1, and colour temperature was just a little high at 6,825K. In both cases, we were able to get colour temperature within a whisker of 6,500K by tweaking the appropriate settings in the onscreen menu.
The backlighting is superb. Colours look solid and even across every inch of the display, with not a hint of mottling, and the Eizo passed our uniformity test with flying colours. Measured across 15 points on the screen, the brightness deviated by an average of 1.9% – the biggest variation being in the panel’s top-right corner, which was still only 3% dimmer than the centre.
Although it’s these great figures that grab the attention, the ColorEdge CS240 also nails all the essentials. The adjustable stand smoothly rises up and down by 130mm and tilts around into portrait mode, and there’s barely a hint of wobble whichever way you contort it. The build quality makes the CS240 feel a cut above the average 24in monitor. Connectivity is excellent, with HDMI, DVI and DisplayPort inputs plus a two-port USB hub – although sadly only USB 2 is supported.
The Eizo ColorEdge CS240 isn’t cheap – you could buy two Dell UltraSharp U2414H IPS monitors for the price of one and have change left over – but this is the first time we’ve seen a truly professional-class monitor at anywhere near this price. For around $1000 (street price), Eizo has served up immaculate image quality and all the essential features we’d expect for a fraction of the cost of its flagship ColorEdge CG277. If you’re in the market for a professional-class monitor at a reasonable price, Eizo’s ColorEdge CS240 is as good as it gets.