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Updated on August 01, 2018

Eizo ColorEdge CG2420 monitor review

The old Eizo CX241 this new CG2420 is supposed to replace had a difficult marketing mix to understand when you don't form part of the company! Eizo deeply reworked this monitor that stands between the excellent CS240, replaced by the CS2420 and the top-range CG247X. It now integrates the different and many improvements of the CS2420 but also a very good new feature: a "real" colorimeter! For what difference of price in the end? Isn't it going to challenge the famous CG247X?


EIZO CG2420 monitor


To introduce this new Eizo screen quickly, the "mid-range" screen of the ColorEdge series, supposed to replace the CX241, we could say it's a 24in monitor (1,920 x 1,200 – pitch 0.27 – 94 ppi) with a new generation glossy panel – new anti-reflections treatment and better contrast – addressed to photographers and graphic designers, but also to video editors, with IPS technology (white LEDs), 16-bits LUT table and also wide gamut hence covering a gamut very close to Adobe RGB 98 and also 98% of DCI P3 and 100% of REC 709. It can be filed in the category of "Graphic Arts" screens. It is sold at a higher price of £1,125.00 (Early 2018) because it now integrates a "real" colorimeter instead of this ersatz that could only be used to check a calibration made with a calibration sensor on the CX241. And many other things you're about to discover below...




Presentation of the screen Eizo CG2420

To start with, here are a few illustrations of this new screen with flawless ergonomic design, noticeably improved (handle, thin edges, electrostatic buttons) since CX241(or CS240)...

Pictures of Eizo CG2420 monitor



Main technical characteristics of the Eizo CG2420...

Size : 24-inch 16:10 - 1,920 x 1,200 - 94 ppi
PlateIPS LED white LEDs - Glossy panel with new anti-reflections treatment, finally completely invisible,
Calibration program : ColorNavigator (hardware calibration) + built-in sensor
Color space: Adobe RGB 98, 98% of DCI P3, 100% Rec 709,
Certifications: CG247X only!
Brightness/contrast: 400 Cd/m2 / 1270:1 (Measured)
Inputs: DVI-D + Port Display + HDMI. (HUB 3 x USB 3.0),
LUT table: 16 bits - hardware calibration.
Edges: thinner, 18 mm instead of 27mm (CS240).
Delay: 15 ms.
VESA compatibility: Yes (100mm).
Cap: Yes.

Warranty: 5 years.

EIZO CG2420 Price Seller

What's inside the box...

The screen is sold with:

  • Its power cord... obviously!
  • A DVI cable
  • A DisplayPort/MiniDisplay cable
  • A USB 3.0 cable for hardware calibration and for the alimentation of the USB HUB.
  • A cap
  • Colornavigator on a CD
  • A nice attention! a cleaning kit for the panel (cleaning product + piece of rag)

Bulkiness and perceived quality

The screen has a brand new 24" panel and is 55cm wide (the panel is 52cm wide). It is thus a lot less bulky than the CX241 it replaces. It is good news for those who want to use a multi-screens configuration!

The monitor and its panel - New!

Screen Eizo CSX2411 - Definition/Resolution - It's the same panel as the CS2420 so we're talking about a new glossy IPS panel, normal for this type of screens called "Graphic Arts", measuring 1,920 x 1,200 pixels and 21,47in wide. Its resolution is thus 93.8 ppi. Classic and not "Retina", but who knows why, maybe thanks to this awesome new anti-reflections treatment – even better than the wonderful CS240 - I'll mention again below, the pixels seem invisible from a "normal" viewing distance on a desk (60 cm / 24in). The backlighting uses white LEDs.

2 - The panel and its anti-reflections treatment - New - The CS240, CX241 and CG247 series had noticeably improved the "glossy" anti-reflections treatment of their panel. It was almost not visible on the pixels anymore, and that gave a wonderful rendering on images and gradients. Well Eizo improved it some more for this new CS2420 and CG2420 series. From a distance of 60cm, you can't distinguish the pixels anymore or at least even less than on the previous series and the surface of the screen seems completely smooth. Awesome and striking quality of this new panel!

3 - Program for hardware calibration - This screen is sold with its calibration program: the famous ColorNavigator – It will guarantee you to get an ideal calibration, easy to perform moreover (good if you don't master the meaning of all target values). But it is also this program, coupled to the new built-in sensor I'm mentioning again below, that will enable you to monitor the calibration of your screen on a regular basis.

4 - Built-in sensor - New! This tiny built-in calibration sensor, that is only one cm large when it gets out of its hiding at the top of the screen, will enable us to perform a "real" calibration like the CG247 and not a simple control like the CX241, and will then automatically, at the end of a period you have to define – 200 hours by default so averagely 20 days for a professional – re-calibrate your screen without having to buy a calibration sensor. And this, even though the factory calibration is really good...





Note about heating time! it is only three minutes with this brand new panel. Just enough time to switch on your Nespresso machine and gulp down a ristretto!

5 - Brightness and homogeneity with the DUE functionality - This very efficient functionality that acts like an equalizer enables to keep a homogeneity in the display with differences that don't go over 5% – measured. Meaning invisible or almost! And you know what's crazy? It works! That's a real difference with generic brands.

Thickness of the edges of the screen - New

Edges of the Eizo CS2420 and CG2420, 18mm thick


They're now 18mm thick on each side and thus lost one centimeter on the right and one on the left, and almost three at the bottom. It is not a record thinness, but it leans towards 2018 standards favoring multi-screens configurations. (Read: my recommendations to choose your photo screen )

Ergonomic design (see photos above)

Ergonomic design has noticeably improved, especially for transportation since the screen now features a brand new handle on top and at the back of the screen, also very convenient to adjust its height. Still no wire grommet in the foot though. The range of motion of the screen in height (on 155 mm), tilting and rotation, will enable all users to find their ideal settings. Truly perfect!


Ergonomic design of the EIZO CG2420


Other new feature, the menu buttons on the screen are now electrostatic, a lot more elegant than on the CX241 (or the CS240) and with a nice ping (that can be muted) when you press them. This new screen is definitely really refined...


Electrostatic buttons of the Eizo CS2420


The buttons of the screen menu are now electrostatic but the OSD has remained the same.

Note! In the screen's OSD it is possible through the menu Preferences > Indicator to change the brightness of the LEDs or even to turn them off for those who work in the dark. Well thought!




What is it like after calibration with the i1Display Pro?

To start with, I calibrated this screen – like all the other screens I review – with the best current sensor (except the superlative and very expensive Discus) of great value for money: the i1 Display Pro + program iProfiler (version 1.6.6) in order to be able to evaluate this screen compared to the other ones on the market. As you will see, the figures are already barely believable since they're establishing a new record in my reviews – so it can only get better with ColorNavigator (review below) and the new built-in sensor but I'm afraid you won't even be able to see a difference even though the values are even better. More neutral but not necessarily more accurate. Though at this level of quality, you don't see uncertainties of the sensor and/or the program. Let me remind you that a very sharp eye can see a gap of 1/200. Here we're talking about average gaps of 1/400!

I chose the following screen settings:

  • Color space: Adobe RGB 98
  • Gamma: Adobe RGB 98 (2.2)
  • Default 50% contrast,
  • Color temperature: 6,500K.

And as target values in the program iProfiler 1.6.6...

  • Screen technology: Choose white LEDs,
  • D65 or possibly a bit less if you want a slightly warmer screen. (Please note that at D55, the screen is really warm but not yellow like low-range screens),
  • Luminance: 80 Cd/m2 or more depending on your main use (print or web) and above all the brightness of your room,
  • Contrast, Native or 287:1 for those who print a lot,
  • Gamma à 2.2 – with a standard curve, (the L* is only available with ColorNavigator and there's a lot to say about this L* gamma anyway)
  • ICC norm: V2 (to avoid incompatibility problems with certain images viewing programs (too dark images) and of course V4 if you know what you're doing.

And the result is?

Objective data: what does the final report say after calibration?

Before moving on to the Delta Es, it is interesting to make note of the color temperature values reached as well as the contrast (doubled on paper).

My opinion! Casually the color temperature (CT) is of course of 6,500K and not approaching like on many lower-range screens. The most spectacular: the native contrast of 1,300:1. We're close to the announced 1,500:1 and it's visible, moreover! (at least compared with the CS240), the blacks are a lot deeper. Very beautiful and a noticeable improvement, even if it is of course not obvious...

The Delta E values according to norm 2000 are of course exceptional and set a new record on this site after calibration with the sensor i1 Display Pro hence without going through a hardware calibration with ColorNavigator.

Final Delta E report of the Eizo CX241

My opinion! Again, a new record is set on this site: an average of 0.23 only. Anyway, it is by so far beyond the level of sensitivity of the human eye – you, me or the 3 billion dollars man! – that it's rather a question of stressing out how exceptional these values are or to designate a winner. Eizo made it though and the colors displayed by this new CG2420 are perfect!

Let's now see the tests of brightness and color temperature harmonization:

Report afterècalibration of theéscreen Eizo CG2420 – Homogeneityéiné brightness


Once again, superlative values! You want to know what a homogeneous panel is? Well borrow or buy this CG2420!


Measurement of brightness harmonization on theéscreen Eizo CX241


The color temperature follows the same pattern: A maximum gap of 54K at the bottom! This is unbelievable...

What about subjective data: what does my eye see?

CS240/CX241/CG247 were references in terms of quality of display in colors, greys, gradients, subtlety in saturated colors, in the display of shadows, in homogeneity, everything. The panel of this new CG2420 (hence also of the CS2420) is even better! Not a lot better because frankly, how can you do better than excellent? But since I'm lucky enough to have my CS240 and this CG2420 in front of me while I'm performing this test, it is really obvious that the anti-reflections treatment is completely invisible on this CG2420 and the blacks are sensibly deeper. So yes, contrast improvement on paper is visible in real life! The flyer wasn't lying!




Calibration with the built-in sensor and ColorNavigator

Built-in sensor of the Eizo CG2420You don't have to buy a calibration sensor with this Eizo CG2420 because it is included in the top section of the screen, in the center. It will pop out of its little compartment when a calibration is required (it can be programmed). This colorimeter of excellent quality is commanded by the program ColorNavigator sold with the screen. This program stands as a reference because of its performances and the monitoring possibilities it enables once calibration has been performed. I recommend it without any reservations.

1 - Calibration program

Programming calibration with ColorNavigator So the calibration can be programmed. It will perform itself automatically, while you're usually just warned you're going to have to do it. And what's even better, it can even be performed when the screen if off, hence by night. Calibration won't have to take place during your working time! The very – very – short heating time of the Eizo CG2420 – 3 minutes – wouldn't keep you from using the screen for a very long time though. For a professional use, I would recommend calibrating once a month, in order to be completely, completely reassured! Personally, I'd do it  once every six months but since it can be performed at night...


Timer Preference in ColorNavigator


2 - A real hardware calibration

To work in hardware mode, the screen needs to be plugged, of course, à the graphic card too (!), and also à the computer thanks to the USB 3.0 cable that comes with the screenthrough which the ICC profile created will go directly to the LUT table of the screen in order to get the most progressive display of gradients. In addition to that, if you connect your screen to an NVidia Quadro graphic card on a PC (it doesn't work on Mac) you'll have the joy to see your images displayed on 10 bits in input! It would only be visible on certain gradients but professional editors will appreciate the prowess.



3 - Choosing target values in Colornavigator

In ColorNavigator ( I chose in the left column "Create a new target" (1):



  • Brightness: 80 Cd/m2 for print and 100/120 Cd/m2 for web/graphic design,
  • White point (Point blanc): I picked 6,500K (D65) but printers will go for 5,000K,
  • Gamma: 2.2 (the L Star brightens dark shades too much).

Note! Of course, there are many settings you can change in ColorNavigator – but not the language! – if you need other values, you probably know why and you'll know how to, where and what values to pick.

When everything's ready, click on the "Adjust" button at the top right (2)

Then, choose Calibrator build-in and launch calibration. It is rather fast because it reviews 32 patches only.

Objective data: what does the final report say after calibration?

Once calibration is done, the CT reached is indeed 6,508K, the black brightness is 0.06 Cd/m2 only hence really deep – and twice deeper as CX241 – as with the i1 Display Pro though. Native measured contrast is 1,312:1, here again very close to the one measured with the i1 Display Pro. Everything is excellent too. So how should you make a choice? What is the difference criteria with the i1 Display Pro?


Post-calibration report of the Eizo CG2420 with ColorNavigator


Important note! I couldn't check the Delta Es because this verification can't be performed with the built-in calibrator of this CG2420. It could only be done with an external sensor, which makes no sense at all. This limit of the software is supposed to leave room for the CG247X. It's the only one that can offer guaranteed certifications. Top-range needs exclusivities of its own! However, this is for restless minds only, because I can assure you that with or without calibration, it is really beautiful and neutral.

What about subjective data: what does my eye see? How to choose between the built-in calibrator or the i1 Display Pro?

Objectively, I could say that grey neutralization might be even better with the ColorNavigator + built-in colorimeter solution than with the i1Display Pro that, in comparison, leans very slightly towards warm/reddish shades, still in D§( of course (I said very slightly and that's only because I have instantaneous comparison elements before my eyes). Some could think that calibration with the built-in colorimeter is too neutral for a personal or professional use but not for professional editors or as a service provider. For a professional editor, it is the ultimate weapon though! For the rest, it's equivalent. The real winner is thus the simplicity of use thanks to the possibility to program this built-in solution and the perfect neutralization (who said too perfect?!). Too bad the price is twice the CS2420's and £300 more than the CS2420 + i1Display Pro...




Conclusion and my rating!

Screen Eizo CS2420The conclusion is obvious: so it was possible to make the excellent Eizo CX241 even better! I wouldn't have imagined so many different criterias could be improved, by the way (even if the difference is not big, but still!). I already loved this old series (CS240/CX241/CG247) so much! Ergonomic design has been improved, the new anti-reflections treatment is now totally invisible, the contrast has almost doubled and it is sensible, the "real" built-in calibrator to stop thinking about calibration, the record DeltaEs, the perfect homogeneity, the very thin edges finally, the brand new inputs... Those of you who will treat themselves to it won't have to think about it anymore, they can work... serenely in front of the best possible panel! Well done, Eizo.

Additional question: should you replace your CS240, CX241 or CG247 with this CG2420? That's a tough one, because there's not a world of difference with these old screens that were already excellent. However, everything has been improved and it wouldn't be ridiculous to choose this screen as a replacement. It won't just be an instant crush because Eizo makes excellent screens that resist time very well! Not many replacement products can claim that...

Okay, let's give you my opinion! Right now, between this new Eizo CG2420 and an Eizo ColorEdge CG247, I would choose the... CG2420 without hesitation for a new, even more beautiful panel. Forget about certifications and other controls that are only here for reassurance. I'm not an anxious mind and since I can rely on my eyes, I can perfectly see that this new screen is wonderful.



  Eizo CG2420      
Manufacturing quality
5 stars
3.5 stars
94 ppi  
Ergonomic design
5 stars
5 stars
  Colors accuracy 5 stars    
  Uniformity 5 stars    
Value for money
5 stars
  • Record values after calibration with the i1 Display Pro! Delta E of 0.23 according to norm 2000!
  • Perfect neutralization of greys with the built-in calibrator,
  • Superlative homogeneity!
  • Doubled contrast: 1,300:1 measured!
  • New matte "glossy" IPS panel with perfect rendering and with a new and superb anti-reflections treatment - Striking quality and sensible improvement compared to CX241 - It WAS possible!!!
  • Wide gamut for photographers (Adobe RGB 98) and video editors (DCI-P3 or REC 709),
  • Finally a real and excellent built-in colorimeter instead of this ersatz on the CX241!
  • Thinner edges on all sides: finally, 18mm!
  • Updated inputs (USB 3.0),
  • Ergonomic design noticeably improved (very convenient handle)
  • Cap,
  • 5-years warranty.
  • A favorite that is completely perfect or almost!
  • The price of course, that has raised compared to the CX241 it is supposed to replaced, but still £500 under the CG247X,
  • No certifications or other verifications.
10/10, excellent!


My opinion: Just out of the box and plugged, this new screen brings real improvements compared to the CX241 it replaces! I already loved the CS240/CX241/CG247 series and I didn't think it could possibly be noticeably improved. The ergonomic design has been improved thanks to a very convenient handle, the inputs are brand new, the edges are thinner and above all, the new panel has such a subtle anti-reflections treatment that the pixels are now invisible from a distance of 24in, and finally there's a real built-in colorimeter and not the ersatz of the CX241. And that's before calibration... which didn't seem so necessary though considering how good the factory calibration is. Calibration reports don't leave room to interpretation: this screen is setting new records. I had a real crush on this screen, the current top of the list. Excellent! What more does the CG247 still have? Apart from certifications I can't think of anything...


Buy the New Eizo CG2420 (Replace the CX241) from this site

Eizo CG2420 monitor

Eizo CG2420
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Summary > Eizo CG2420 review



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