As noted on the previous page, NEC limits the upper level of the PA242W backlight to 240 cd/m2. You can go beyond this, but the control turns red to let you know that overall performance is suffering. The construction of the PA242W is designed to make it as uniform and even a display as possible. Pushing the backlight too far will reduce that. No one that is using this monitor in a professional setting would need light output beyond that, so I used that level for the maximum setting here.

If you want to go beyond that, the NEC can produce 287 cd/m^2 at maximum. The minimum setting produces 41.19 cd/m^2, very close to the on screen reading of 40 cd/m^2. The 240 cd/m^2 setting produces 236.7 cd/m^2, also very close. You can adjust this to any level between in 1 cd/m^2 increments. For white level control, the NEC PA242W is unmatched in my experience.

White Level -  XR Pro, Xrite i1D2 and XR i1DPro

Black level is not quite as good as white level. At the 240 cd/m^2 level we have a black level of 0.4001 cd/m^2 and at the minimum setting we see a level of 0.0799 cd/m^2. That is a very low minimum, but no other monitor has a minimum setting of only 40 cd/m^2 either.

Black Level - XR Pro, Xrite i1D2 and XR i1DPro

The contrast ratios that result from the above are only fair, 515:1 for the minimum setting and 592:1 for the 240 cd/m^2 level. Curiously the maximum setting produces a contrast ratio of 699:1 indicating that the NEC can do better if you sacrifice uniformity. For movies and TV people typically value contrast ratio above all, but for production work, uniformity might be more important. We will see if this sacrifice winds up being worth it later.

Contrast Ratio -  XR Pro, Xrite i1D2 and XR i1DPro

Introduction and Design Bench Test Data: sRGB Mode
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  • sweenish - Friday, September 27, 2013 - link

    By your own admission, the monitor reviewed is fine as it does have the 1000:1 that you quote for a display being good. I know you say "at least," but that still makes all your complaining useless as this monitor meets your criteria.
  • khanov - Sunday, September 29, 2013 - link

    Hulk fail. :-(
    Hulk mad!
  • foxalopex - Friday, September 27, 2013 - link

    Senti - I own this monitor so I can attest that you are right. What's striking about this monitor visually is that at first it doesn't look like it has a lot of contrast. That is the absolute white and absolute black colours are not as extreme as most monitors. At least until you put up a picture or run a movie that has very light and dark scenes. What you end up seeing is a lot of gradients of grey that are not pushed into absolute black or white. The results are amazing compared to what you would see in a normal monitor.
  • Gothmoth - Friday, September 27, 2013 - link

    we have pro eizo and quato monitors here, they are the best for photographers and designers and they have a contrast ratio of .. guess what.... 1000:1

    some noobs think higher contrast ratio numbers and maybe even dynamic contrast makes a monitor better... well they are wrong.
  • rabidwombatsquirrel - Saturday, October 26, 2013 - link

    Well higher contrast ratios DO make a monitor better and I can't wait until we get OLED tech and 4k+ in these NEC displays since I do miss the extra deep blacks and contrast even for photos.

    That said screen uniformity, colors not going wonky looked at even a hint off angle, perfect primary location, perfect saturation and primary luminance tracking, wide gamut, etc. also matter a ton and these PA series do all that amazingly well (Eizo too, although they cost twice as much).
    The internal 14bit 3D LUT in these PA monitors works wonders. And unlike with most wide gamut monitors you can pop it into a PERFECT sRGB emulation with not only just gamma 2.2 option but even sRGB TRC options as well, in fact, it does sRGB a lot better than virtually any sRGB monitor, almost all of which actually fall a bit short of sRGB primaries.

    These are superb monitors!!!! That also said I can't wait until they get OLED into them for amazing blacks and contrast ratios and also 4k+ since the current res is bothersomely low (not that it's worse than 99.9999% of others, I just want the tablet/HDTV retina type stuff to appear in desktop monitors already).
  • rabidwombatsquirrel - Saturday, October 26, 2013 - link

    Yeah being able to get low black levels is important and I surely wish IPS was better.

    That said, much of what you are saying is totally wrong! Dynamic range is not the ability to distinguish between various dark tones and various bright tones. And a low contrast ratio absolutely does not mean that dark tones appear crushed!!!! (unless you are using absolute calibration to pure black instead of relative, which doesn't work out all that well on anything other than OLED screens, although the top PVA and plasma could almost start to get away with it without crushing too much but even then you'll lose the ability to tell apart the very darkest tones) or that bright tones appear clipped!

    A monitor with a poor contrast ratio tends to have blacks that are not all that dark and it's often easier to see into deep shadow details on them.

    A monitor with superb calibration will leave the lowest steps all distinguishable if you use relative black level calibration while many cheap ones, even with intensely deep black levels and high contrast ratio, may crush all those tones together with no way to separate them and they might also clip the top end so the top few shades all look the same, that definitely isn't the case here.

    Not measure here are things like saturation tracking curves and primary luminance tracking curves, many monitors appear to be perfectly calibrated but if you toss in these tests many will fail, some quite badly, here the lines are near perfect thanks to the 14bit 3D LUT.
  • rabidwombatsquirrel - Saturday, October 26, 2013 - link

    My post above was supposed to be to Hulk not you Senti, sorry it got placed wrong.
  • Death666Angel - Friday, September 27, 2013 - link

    Well, NEC has been doing it like this for most of their high-ish end monitors for years and clearly they are much sought after. The way they make their displays so homogeneous is resulting in this "low" contrast ratio. I haven't ever seen anyone complain about contrast ratios above 500:1 in the professional space this is aimed at. I have also never seen anyone want an OLED display for their work, as you seem to desire. Also, last I checked, print contrast ratios are below 500:1 as are nearly all film/tv contrast ratios.
  • chrnochime - Friday, September 27, 2013 - link

    If you are as much an expert as you claim to be you wouldn't need to cast doubt into how good this monitor is when it comes to contrast, since you'd KNOW already. And if it's anywhere as bad as you think it is, NEC would not have people still buying them to warrant making this most recent iteration.
  • ZeDestructor - Friday, September 27, 2013 - link

    A 16:10 display! rare things these days..

    Nice results, but how does it compare to the similarly-targeted/specced Dell U2413, or even the older U2410?

    Kinda dissapointed at the lack of 4K at 24" 16:10 (3840x2400), but I guess we still have to wait for the current stock of 1920x1200 panels to get pushed out and 4K stocks to build... Then again, with some good production, marketing, we could be having 8K at 20" already (my phone has 1920x1080 at 5", just scale up the panel)

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