RE: NEC PA271Q "Native" chromaticities
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 /wire _______________________________________________ Do not post admin requests to the list. They will be ignored. colorsync-users mailing list (colorsync-users@lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/colorsync-users/graxx%40videotron.ca This email sent to graxx@videotron.ca _______________________________________________ Do not post admin requests to the list. They will be ignored. colorsync-users mailing list (colorsync-users@lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/colorsync-users/graxx%40videotron.ca This email sent to graxx@videotron.ca
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
/wire _______________________________________________ Do not post admin requests to the list. They will be ignored. colorsync-users mailing list (colorsync-users@lists.apple.com) Help/Unsubscribe/Update your Subscription:
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