NEC offers their own calibration software, SpectraView, for their monitors. Most software packages like CalMAN work with the video card LUTs to improve calibration, and the monitor LUTs if they can access them. The NEC PA242W contains a 14-bit, 3D LUT that allows you to correct the output to be almost perfect. Using SpectraView, NEC will reset your video-card LUT to be neutral and rely only on the monitor LUT so it will work correctly afterwards on almost any PC.

You can use a wide variety of meters with SpectraView but I chose to use my i1Pro. It isn’t as good at low-light as the C6, but it's more color accurate. The C6 is accurate if you profile it, but the NEC software does not allow for this. Once connected you choose your targets (D65 white point, 2.2 gamma, 200 cd/m^2, and sRGB gamut here) and then the software calibrates the PA242W. The calibration is also much quicker than CalMAN, which is nice. You can save multiple different targets in the SpectraView software and then load them back up later if you need to work in multiple environments.

After the calibration I measured again with CalMAN using the same settings as before to see if this works better than CalMAN on its own. To see how this performs I had CalMAN measure far more points than usual, which takes a long time.

  CalMAN Calibrated,
200 cd/m^2
SpectraView,
200 cd/m^2
White Level (cd/m^2) 204.14 200.6
Black Level (cd/m^2) 0.366 0.3827
Contrast Ratio 558:1 524:1
Gamma (Average) 2.1437 2.1596
Color Temperature 6426K 6458K
Grayscale dE2000 0.6504 0.706
Color Checker dE2000 0.6392 0.8781
Saturations dE2000 0.6722 0.7461

The NEC software produces very similar results. The contrast level is a little worse, but the light output level is slightly more accurate. Everything else is close enough as to be a draw where this is concerned.

Average saturation and color checker dE2000 errors are below 0.9, which is incredibly impressive. No individual measurements rise over a dE2000 of 2.0, and that means you should have no visible errors now. None. 

When I re-ran the NEC Calibration and targeted 80 cd/m^2 instead of 200, the results are not nearly as good. This might be due to using the i1Pro and it not performing as well in lower-light situations. It also might just be that the method the software uses is not as effective at lower light targets. With these I find the CalMAN calibration to perform better.

The SpectraView software also allows you to save your calibrations and recall them. You can select your saved settings from a drop-down list and it will reload the LUT into the monitor. If you're regularly moving from sRGB to AdobeRGB or other colorspaces and back, this makes it easy to do so. It also avoids using the video card to make it more reliable than other methods.

After using the SpectraView software and seeing what it can do, I’d suggest it should be considered possibly essential for this display. The ability to save and recall multiple presets makes working with the monitor with different media, or lighting conditions, simple and easy. There is no worrying about the display not being setup ideally for whatever environment you need to work in. Also worth noting is that by going directly to the monitor LUTs, the final calibrated colors will be used regardless of what program you run; this isn't always the case with video card LUTs, as games and videos will sometimes bypass those, and it's one more feature that sets a display like the PA242W apart from consumer models.

Bench Test Data: AdobeRGB Mode Display Uniformity
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  • DanNeely - Friday, September 27, 2013 - link

    Defect rates on an 8k panel would probably be prohibitive.
  • ZeDestructor - Friday, September 27, 2013 - link

    I'm curious on how high they are...

    If it remains withing tolerable limits, I'd happily take upto 200 dead pixels or something similar...
  • MrSpadge - Saturday, September 28, 2013 - link

    Let's talk again once you have a few dozen permanently white, red green or blue dots right in your primary viewing area!
  • ddriver - Saturday, September 28, 2013 - link

    As long as the pixels aren't clustered in a small region dead (dark) pixels will probably not be distinguishable. Stuck bright pixels are a different matter, but at that pixel pitch shouldn't be that much annoying too.
  • ZeDestructor - Saturday, September 28, 2013 - link

    As ddriver said,, as long as it isn't in a cluster, its fine. 200-400 dead pixels spread out over a 440+ppi 24" panel at 30-60cm (my view distances for a desktop) will be pretty hard to spot..
  • SodaAnt - Friday, September 27, 2013 - link

    I know that I've seen an 8K prototype at 30" before at least, and it was pretty damn beautiful, but as far as I know, the (well known) company that made it hasn't brought it to market yet.
  • speconomist - Friday, September 27, 2013 - link

    You mean 32K, as the 20''monitor is 16 times larger than a 5'' inches monitor.
  • garadante - Friday, September 27, 2013 - link

    No, it'd be 8k. Yes, it would be 32 megapixels (roughly) but 4k doesn't mean 4 megapixels. It means 4k pixel width. So 8k pixel width is the same as a 1080p panel stacked 4 wide, 4 high.
  • BlakKW - Saturday, September 28, 2013 - link

    I would really like to understand your analogy of 4 wide, 4 high...it would help me remember the reason 4k is better and how this scales when you add a "k". Also, I've seen it argued that even 4k exceeds the human eye's ability to differentiate, so at what point does "everyone" agree you can't tell the difference?
  • ZeDestructor - Saturday, September 28, 2013 - link

    4 wide, 4 high he means in terms of "stitching" 1920x1080 (2Kx1K resolution, abbreviated to 2K in some circles, 1080p elsewhere) panels, leading to an effective resolution of 7680x4320 (8Kx4K naming).

    When I was referring to a panel sizes, I was referring to the diagonal measurement, as most things are quoted/marketed/sold using that measure. Thus 20" = 16 5" panels.

    "4k is better and how this scales when you add a "k". " It doesn't. K stands for "kilo", the x1000 prefix.

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