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EIZO ColorEdge CG2420 monitor review


Review of the Eizo ColorEdge CG2420 monitor

Published on May 15, 2015  |   Updated on November 10, 2020


The old Eizo CX241 that this new CG2420 is replacing had a complicated marketing positioning to understand when you don't belong to the marketing department in question ! Eizo has therefore reviewed in detail this screen which is located between the excellent Eizo CS2420 and the top of the range Eizo CG247X because it now incorporates the many improvements of the Eizo CS2420 but also a "real" colorimeter, finally ! For which gap after all? Is it going to compete with the famous Eizo CG247X?

To quickly introduce this new Eizo display, the "mid-range" of the ColorEdge series that replaces the CX241, we can say that it is a 24-inch (1920 x 1200 - pitch 0,27 - 94 ppi) with a new generation matte panel - new anti-reflective coating and upwards contrast - which is intended for photographers and other graphic designers but also for videographers, with IPS (white LED) technology, 16-bit LUT table and wide gamut, thus covering a gamut very close to Adobe RGB but also 98% of DCI P3 and 100% REC 709. It therefore falls into the category of so-called "Graphic Arts" screens. It is sold for $1,447 (Spring 2019) because it now includes a "real" colorimeter instead of this "ersatz" which was just used to check a calibration performed with a calibration device on the CX241. And many other things to discover below...

  In a few words...

Eizo CG2420


Colorimetric perfection and homogeneity without certifications, but for a more "reasonable" price : less than $1,500 - read my conclusion  

  More offers...
CDN$ 2,496.00



Introduction to the Eizo CG2420 monitor

To begin with, here are some illustrations of this new screen with its flawless ergonomics, significantly improved (handle, thin edges, electrostatic buttons), compared to the CX241.

EIZO CG2420 integrated screen colorimeter   EIZO CG2420 display and integrated colorimeter
Back of the EIZO CG2420 display and its USB 3.0 plugs   Connectors and electrostatic buttons of the Eizo CG2420 display
  Technical specifications
  EIZO CG2420 Average price : $1,500.00 Inc. VAT
Size / Resolution
24 Inch 16:10 - 1920 x 1200 - 94 ppi
Panel technology
IPS - backlight white-gamut LED
  Uniformity check Automatic control (DUE)
  Gamut > 99% Adobe RGB, 98% DCI-P3, 100% Rec 709
  Certifications No (Reserved for CG247)
400 Cd/M2 / 1270:1 measured
LUT table
10 bits / 21 bits - hardware calibration
  Response time 10 ms
554.4 x 396 - 551 x 245 mm
  Border widths 18 mm
  Color calibration soft Yes - ColorNavigator
  Connectivity DVI-D + DisplayPort 1.2 + HDMI + hub USB 3.0
  VESA compatibility Yes - 100 mm
  Hood Yes
  Warranty 5 years - Eizo USA

What's in the box...

The monitor is sold with :

  • The power cord... of course !
  • The hood,
  • The DVI-D to DVI-D cable in 2016 is visibly replaced by a DisplayPort cable in 2018.
  • A USB 3.0 cable for hardware calibration and powering the USB HUB.
  • ColorNavigator on CD
  • And the little bonus ! A cleaning kit for the panel (pump spray + cloth)

The dimensions and perceived quality

The display has a 24" panel and is 55 cm wide (the panel is 52 cm wide). The screen is therefore significantly less bulky than the CX241 it replaces. So this is good news for those who want to create a multi-screen work environment !

EIZO CG2420 screen and its hood

As for the perceived quality, it is excellent, really. Perhaps the best finish I've seen in my tests so far...

The Eizo CG2420 monitor and its panel

1 - Definition/resolution -

This is a new panel, different from the CS2420, and therefore a matt IPS panel, normal in this niche of so-called "Graphic Arts" screens, 1920 x 1200 pixels and 52 cm wide. Its resolution is therefore 93.8 dpi. Classic and not "Retina" but who knows, thanks to the superb new anti-reflective coating - even better than the very beautiful CS2420 - of which I talk again below, the pixels seem invisible at a "normal" viewing distance on a desk (70 cm). The backlight is a white LED diode type.

EIZO CG2420 screen and its new panel

2 - The panel and its anti-reflective coating New - The CS240, CX241 and CG247 series had made very significant progress in the matt anti-reflective coating of their panels. This one hardly marked the pixels anymore, which gave a magnificent rendering on the images and gradients. Well, EIZO has further improved the one of this CG2420. 60 cm away, the pixels can no longer be seen or at least even less than in the previous series and the monitor surface seems totally smooth. Magnificent and outstanding quality of this new panel !

Fonction DUE Eizo3 - Brightness and homogeneity with the DUE function - This very efficient function which acts as an equalizer ensures a homogeneous display with differences not exceeding 5% measured. In other words, invisible ! And the craziest thing : it works! There is a real difference with more generalist brands.

4 - Built-in calibration sensor - New! - This very small integrated sensor, which barely exceeds 0,39 inches when it comes out of its hiding place at the top of the display, will allow you to perform a "real" calibration as on the CG247 and not a simple check as on the CX241 and then, automatically, according to a period you will have defined - 200 hours by default or 20 days on average for a professional - recalibrate your display without having to set a budget for a calibration sensor. That being said, when leaving the cardboard box the factory calibration is already so good...


Built-in colorimeter of the Eizo CG2420


Note about the warm-up time! It is only three minutes with this new panel. Just enough time to warm up the Lelit machine and swallow a ristretto!

4 - The video section - The video section of this screen is really complete and represents the best in the business. Here's why :

  • The 3D LUT table manages the 10-bit input and 16-bit output for a perfect gradient display, especially if you install this monitor on a 10-bit graphics card.
  • It perfectly manages 4K x 2K signals on the DisplayPort port (30hz frequency).
  • Overdrive function for a smooth video display (equivalent to a 7ms response time).
  • For video post-production - I/P conversion
  • For video post-production - HMDI: 1080 to 24 frames/sec.

The connectivity

This monitor has an HDMI input (with direct connection to a digital camera or a video camera), a DisplayPort input, a USB 2.0 input to ensure hardware calibration, i.e. to send the generated ICC profile directly to the LUT table of the monitor and not only to the graphics card and finally two USB 2.0 inputs (only USB 2.0!).


Connectors of the Eizo CG2420

The ColorNavigator software (Hardware calibration)

My advice! Even if the calibration with the i1Display Pro is very efficient as you will see below, the interest of this monitor lies, among other things, in its built-in sensor. It happens to be perfect and even a little better than my favorite colorimeter. I highly recommend the use of the built-in sensor which can only work with ColorNavigator!

Exemple avec l'Eizo CG277

I will create a tutorial dedicated to ColorNavigator later...

Thickness of the screen edges

Edges of the Eizo CG2420They now measure 18 mm on each side and have lost about 0,34 inches to the right and left and about 1,18 inches to the bottom. This is not a record for finesse but we are getting closer to the 2018 standards favouring multi-screens.

To be read: my advice to choose your photo monitor 

The ergonomics (see photos above)

Ergonomics has been significantly improved, especially for transport, since a new handle appears at the top and back of the monitor, which is very practical for raising or lowering it to the right height. However, there are still no wire grommets in the foot. The amplitude of the screen's movements in height (over 15.5 cm), inclination and rotation will allow all users to find their ideal setting. Really perfect!


Ergonomics of the Eizo CG2420


Another new feature is that the menu buttons on the monitor are now electrostatic, much more elegant than on the CS240 and have a nice ringing sound (which can be cut) when you click it. A lot of sophistication in this new screen...


Electrostatic Buttons from Eizo CG2420

The buttons on the display menu are now electrostatic but the OSD is still the same.

Note ! In the OSD of the monitor, it is possible to modify the brightness of the LEDs or even turn them off for those working in the dark using the Preferences > Indicator menu. Good point!



What is the Eizo CG2420 monitor worth after calibration with the i1Display Pro?

To start with, I calibrated this monitor - like all the monitors I test - with the best current sensor (except the superlative and very expensive Discus) in an excellent price/quality ratio: the i1Display Pro + i1Profiler software (version 1.6.6) in order to locate this new monitor in relation to the market's monitors. You will see that the numbers are already barely believable since they set a new record in my tests - so it could only be better with ColorNavigator (test below) and the new built-in sensor but I'm afraid you won't see the difference anymore even if the numbers are even better. More neutral but not necessarily more precise. And even though at this level, there are no uncertainty errors in the sensor and/or software. I would remind you that a very efficient eye distinguishes 1/200 of a difference. On average, we are talking about 1/400 deviations here!

I chose the following screen settings :

  • Color space : Adobe RGB
  • Gamma : Adobe RGB (2,2)
  • Contrast : 50% by default / Native
  • Color temperature : 6500K (Adobe RGB).

And as target values in the i1Profiler software 1.6.6... 

  • Display technology : Choose white diodes,
  • D65 or possibly a little less if you want a slightly warmer screen. (Note that at D55, the screen is really warm but not yellow like on cheap monitors),
  • Luminance : 80 cd/m2 or more depending on your main use (printing or web) and especially the brightness of your room,
  • Contrast : Native or 287:1 for those who print a lot,
  • Gamma : 2,2 – standard curve, (The L* is only available with ColorNavigator and there is a lot to say about this L* gamma anyway)
  • ICC norm : V2 (to avoid incompatibility problems with some image viewing software (images too dark) and obviously V4 if you know what you are doing).

And the result is?

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

Before switching to Delta E, it is interesting to record the color temperature values achieved and the contrast.


Final report after calibration of the Eizo CG2420 with the i1Display Pro


My opinion: As by chance the color temperature (CT) is obviously at 6500K and not approaching as on many lower end displays. The most spectacular : the 1300:1 native contrast at 80 cd/m2. We are close to the 1500:1 announced and above all it shows (at least in comparison with the CS240 or even the new CS2420 which no longer shares the same panel), the blacks are slightly deeper. Very nice all this and significant improvement even if obviously not obvious...

Delta E figures according to the 2000 standard are obviously exceptional and set a new record on this site ! After a calibration with the i1Display Pro sensor, without going through a hardware calibration and ColorNavigator.


Delta E after calibration of Eizo CG2420 with i1Display Pro


My opinion! Another new record on this site : only 0.23 of average. That said, we are not so much below the threshold of sensitivity of the human eye - you, me or the "Six Million Dollar Man" ! - that it's more for the formalities or to choose a winner. That said, Eizo did it and the colors displayed by this new CG2420 are perfect !

Now the luminance and color temperature harmonization tests :


Luminance uniformity after calibration of Eizo CG2420 with i1Display Pro


Once again, these are superlative readings! You want to see what a homogeneous panel is ? Well, lend yourself or buy this CG2420 !


Uniformity in color temperature after calibration of the Eizo CG2420 with the i1Display Pro


In terms of colour temperature, this is obviously in line with this : a maximum difference of 54 K at the bottom! All this is incredible...

And my subjective data : what does my eye see ?

The CS240/CX241/CG247 were references in terms of color display quality, grays, gradients, subtleties in saturated colors, shadow display, uniformity, anything you want. The panel of this new CG2420 (different from the new CS2420) does even better ! So not much better because frankly how to improve excellence ? But since I am lucky enough to have my CS240 and this CG2420 in front of me at the time of this test, we can really see that the anti-reflective coating is completely forgotten on this CG2420 and that the blacks are significantly deeper. Yes, the increase in contrast (on paper) is seen in real life. The brochure did not lie !



Calibration with the built-in sensor and ColorNavigator software

The Eizo CG2420 display does not require a colorimeter because it is integrated in the upper middle part of the display. It will exit its small trapdoor when the calibration request is made (programmable). This excellent colorimeter is controlled by the ColorNavigator software sold with the monitor. This software is a benchmark for its performance and control capabilities once calibration is completed. I therefore recommend it to you without reservation.

Retractable built-in colorimeter from Eizo CG2420


1 - Calibration programming

The calibration can therefore be programmed. It will be done on its own where, usually, we are simply warned that it will have to be done. And even louder, it can be made even screen off so at night. Calibration will therefore not interfere with working time ! The very - very - very - short warm-up time of the Eizo CG2420 - 3 minutes - would not leave the monitor unusable for long. For professional use, I recommend a monthly calibration, just to be completely reassured ! Personally, I will be satisfied with once every six months, but again, since it is done at night...


2 - A real hardware calibration

To benefit from hardware calibration, the display needs to be connected to the computer that will at least be used for its calibration using the USB 3.0 cable provided and through which the ICC profile will pass directly to the LUT table on the display. This brings two benefits : on the one hand, it guarantees the best possible calibration but also the possibility of installing this monitor on another computer without having to recalibrate it on it.

3 - Choose the target values

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

  • Brightness : 80 cd/m2 for printing use and 100/120 Cd/m2 for mainly Web/graphic use,
  • White point : 5000K for printers and 6500K for others,
  • Gamma : 2,2 (the L Star lightens dark tones far too much).

Note! It is of course possible to change a lot of target values in ColorNavigator but if you need to choose others you know why and you will know how to do it, where and which values to choose.

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

Then choose the built-in sensor as the colorimeter and start the calibration. This one is rather fast because it only reviews 32 patches.

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

Once the calibration is complete, the CT reached is 6508K, the black luminance is only 0.06 cd/m2 so very deep - and twice as deep as with the old EizoCX241 - but on the other hand as with the i1Display Pro. The measured contrast is 1312:1 at 80 cd/m2, again very close to the i1Display Pro. Only very good too. But then how do you choose ? What is the difference with the i1Display Pro?



Important note! I could not check the Delta E because this check cannot be done with the built-in colorimeter on this CG2420, it can only be done with a third sensor, which makes no sense at all. This is a software limitation to allow the CG247X to do this. It is the only one able to offer the guarantees of certification. You have to leave a little bit of something at the top of the range ! That said, that's for the worried because I assure you that with or without calibration, it's really beautiful and neutral.

And my subjective data : what does my eye see ? How to choose between the built-in colorimeter or the i1Display Pro?

Objectively, I could say that the grey neutralisation is perhaps even more advanced with the ColorNavigator + built-in colorimeter solution than with the i1Display Pro which, by comparison, draws very slightly towards the heat/red always in D65 obviously (I said very slightly and because I have instant comparison elements under the eyes). Some may find that calibration with the built-in sensor is precisely too neutral for personal or professional use, but not as part of a retouching job as a service provider. For a professional retoucher, on the other hand, it is the ultimate weapon ! For the rest, it's all the same. The real winner is therefore the simplicity of use thanks to the programming of this integrated solution and the perfect neutralisation (who said too perfect ?!!). Too bad the price is twice the CS2420 or about 300 dollars more than the CS2420 + i1Display Pro...




  Eizo ColorEdge CG2420  
Color fidelity 10
Uniformity of the panel 10
Resolution 8
Ergonomic design 10
Connectivity 8.5
Manufacturing quality 10
Value for money 10


  I like it very much...  
  • Record levels after calibration with the i1Display Pro! 0.23 of Delta E according to the 2000 standard!
  • Perfect grey neutralisation with the integrated colorimeter,
  • Great homogeneity!
  • Doubled contrast / CX241 : 1300:1 measured!
  • New "satin" matt IPS panel with a perfect finish and a magnificent new anti-reflective coating - Outstanding quality and significant improvement over the CX241 - So it was possible!!!
  • Wide range for photographers (Adobe RGB) and videographers (DCI-P3 or REC 709),
  • Finally a real and excellent integrated colorimeter and no longer this ersatz of the CX241!
  • Edges thinned, on all sides : 18mm, finally!
  • Updated connectivity (USB 3.0),
  • Much improved ergonomics (very practical handle)!
  • hood,
  • 5-year warranty,
  • A favorite product where everything is only perfection or just like it!
  I regret...  
  • No certifications and other audits (vs Eizo CG247X). So it will only bother very few people.
  • No Thunderbolt III or USB-C plugs.
  My overall rating...  
  10 / 10, Stunning!  
  My conclusion...  

Just out of the box and plugged in, this new display is a real improvement over the old Eizo CX241 it replaces! I loved the CS240/CX241/CG247 series and didn't think it would be possible to improve it significantly. Ergonomics revised upwards thanks to a very practical handle, state-of-the-art connectivity (when it comes out), thinner edges and above all a new panel with anti-reflective coating so discreet that the pixels are now invisible at 70 cm and finally a real built-in colorimeter and not the CX241's ersatz anymore. That was before calibrating it... which doesn't seem so necessary because the factory calibration seems excellent -. Well, the calibration reports are clear : this screen sets new records. I have a real crush on this display, the most beautiful one at the moment. Beautiful ! What is left in CG247 ? Apart the validation of certifications, I don't know...

Eizo ColorEdge CG2420
CDN$ 2,496.00
Here is my Full review of the EIZO CG2420 monitor
- Full review of the EizoCG2420 monitor
  1 - Introduction to the Eizo CG2420
2 - What is the Eizo CG2420 monitor worth after calibration ?
3 - My rating and conclusion

- My 35 monitor reviews!
- How to choose your monitor?
- How to calibrate your monitor?


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