Thank you for reporting your experience. I think we all agree Dom Perignon is "nice to drink" and who wants to cough up money for nothing? I appreciate learning first hand about your experience, here. Look, NEC is a nice, established "household" name within color management circles. So is Eizo. And I can't tell you how I had to break my bank account to be able to afford an Eizo. Yet, over the years, I was lucky enough to get exposed to NEC units and learned to appreciate their value for the (less) money, compared with the other brand. From the looks of things, it seems that the newest generations of panels are becoming better, in gamut, controls, electronics and, hopefully, in terms of uniformity. I mean, we are slowly going towards Rec2020 in televisionland, so that is bound to trickle in computer monitorland as well, one of these days, and let's not forget we're in 2020, now. So, lots of interesting things are happening on the technology front. WideGamut displays are coming down in prices and it is a matter of time before monitor manufacturers are able to implement better screen uniformity through cheap electronics. Think the $600 you've paid for your Dell UP2516 today will buy you next year? / Roger -----Original Message----- From: colorsync-users <colorsync-users-bounces+graxx=videotron.ca@lists.apple.com> On Behalf Of Wire ~ via colorsync-users Sent: January 3, 2020 2:16 PM To: colorsync-users@lists.apple.com Subject: Re: NEC PA271Q "Native" chromaticities Well, I agree, how can you trust anything?! :0 I get frustrated because color management seems to be a circular chase sometimes, even though I know it's not. More seriously, I find my ability to perceive color fatigues when I grade images for long periods. I also see that sometimes I am much more-or-less sensitive to saturation when environment is otherwise constant. So I find am a huge variable in my color experience :) Every review / test of desktop IPS display I have seen, and I've prolly read 100 or more over the years, reports uniformity error as non-zero. It's the nature of the tech. And how much I notice or care is highly subjective. I prefer it to be zero, but these are just god-given parameters of the situation. Yes, higher fidelity is cool. It looks amazing to see pictures in great color. I say YES to quality. I c o n c u r that having a pair of displays side-by-side, can create an irritating difference when drift is as small as 1 dE, although—again—how much it matters in general imaging practice is even more subjective that our visual systems. "So what does it all mean, Basil?" If money were no object, I would still consider this unit. Actually, even being partly blind, were I to spend more, I would prefer higher resolution, over further improved color based on much I like this units performance. Also, I was reluctant to acquire this model because I saw user reviews complaining about uniformity. This one is completely acceptable to me. Now, I ordered two, but one was damaged by FedEx. The replacement arrives today, So I will get to see if it's a one-off in a bad lot or not a problem. The units these are replacing are also Dells, 2009UWs, IPS, low-res, bought based on price/performance in 2010. These also had some panel left/right variation which was acceptable. With those, I cleverly solved the problem of a slight mismatch by setting the sides that touch to match. And while I would prefer there was no variation to account, it has never affected my professional work in any way. I truly enjoy quality, and what I am seeing from Dell looks very good. Those 2009UWs turned out to measure as perfect sRGB, and once calibrated, had smooth neutral response. They've served me well for a decade. Though as they are aging, the backlight of one has developed some minor botches. NEC was making top-flight gear back then too—and 20 years before with CRTs (Who remembers the famous "Multisync")—for about $1500/unit, while these Dell 2009UWs got to 98 percent of the performance of an NEC for 1/5 of the prices. You see how I think. So, if the second UP2516D that arrives today performs about as well as this one, I will have 2 great functioning wide-gamut displays, I will order an i1d3 to replace my DTP94, and drink a bottle of Dom Perignon with a filet mignon for dinner, and still have money left in my pocket as compared to buying an NEC! I bring all this up just to share my experience—maybe it will help someone else, and because it's interesting to color nerds, so pls enjoy. I will do a crude uniformity measurement with the Uniformity Compensator feature turned on and report what I find for the pair of units. Best to you all. On Fri, Jan 3, 2020 at 10:08 AM Roger Breton via colorsync-users < colorsync-users@lists.apple.com> wrote:

Sorry for the typo, I meant PA271Q -- not "W". Uniformity is very important, as Andrew aptly noted. I remember getting bitten by relatively poor screen uniformity, comparing images to one another; how could one compare the differences in the "images themselves" when the screen "colors" drifts from one side to the other?

/ Roger

-----Original Message----- From: colorsync-users <colorsync-users-bounces+graxx=videotron.ca@lists.apple.com> On Behalf Of Roger Breton via colorsync-users Sent: January 3, 2020 12:21 PM To: ''colorsync-users?lists.apple.com' List' <colorsync-users@lists.apple.com> Subject: RE: NEC PA271Q "Native" chromaticities

It's almost on the nose of the NEC PA271W chromaticities, practically the same 'gamut'. For a whole let less money. But what about the 'uniformity'? Can't say how comparable it is, for I don't have a PA271W but that's an important quality.

/ Roger

-----Original Message----- From: colorsync-users <colorsync-users-bounces+graxx=videotron.ca@lists.apple.com> On Behalf Of Wire ~ via colorsync-users Sent: January 3, 2020 12:12 PM To: colorsync-users@lists.apple.com Subject: Re: NEC PA271Q "Native" chromaticities

On Fri, Jan 3, 2020 at 7:54 AM <graxx@videotron.ca> wrote:

...

Are you able to post the measured RGB chromaticities? / Roger

Dell UP2516D primaries as measured using DisplayCal / Monaco Optix DTP94

I haven't sanity-checked these numbers, so if something looks weird please say so...

Display in native mode: Chromaticity (illuminant-relative) Channel 1 (R) xy 0.6829 0.3123 Channel 2 (G) xy 0.2256 0.7248 Channel 3 (B) xy 0.1515 0.0486

Display in Adobe RGB preset mode: Channel 1 (R) xy 0.6441 0.3301 Channel 2 (G) xy 0.2278 0.7157 Channel 3 (B) xy 0.1515 0.0562

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