Whoops, it's UP2516D, not 2916 Yes max brightness is slightly reduced by using calibrated modes compared to native, as is max gamut. Slightly. The great guys at DisplayCal have included a DTP94+UP2516D colorimeter correction file referenced to i1pro. Working with this I'm finding a slight change in white point and good repeatability. This may let me punt on getting an i1 for now. Fantastic!! I turned off uniformity compensation, pre-cal'd white and dark grey using DCal's pre-measurement feature, then re-profiled. This produces a perfectly matched pair that look right in every way I know how to judge, plus per above full native mode opens up brightness and gamut a smidge as compared to using the display's 6500 preset. And uniformity looks very acceptable. dE Max is still hitting 2.x, dE RMS 1. I added another iphone screen grab which nicely shows off the matching. I'm super stoked. Re Dell SDK I saw that too and have the same questions as you. There's no software in the box, as you would expect in this mature age of the webz... Re built-in LUTs: Wasn't Graeme of ArgyllCMS posting here a week ago that video nerds take this feature for granted 'cause lots of their tools are not color managed—not the way DTP folks think about it. Like they will have a whole pipeline that assumes 709 or SLog or who-knows-what and give the display whatever personality needed via its LUT? Also there's the MadVR stuff that's a renderer for high-end home theater. I use Kodi media viewier (was Xbox Media Center back in day) and it has support for loading a 3D LUT profile. Again this is stuff that's been in video for a decade or more is now being commodified. I'll run a DisplayCal verification report on the built-in Adobe RGB mode. It will look at more color and we'll see... On Sat, Jan 4, 2020 at 16:40 Roger Breton via colorsync-users < colorsync-users@lists.apple.com> wrote:
In fairness, I had to change the title of the thread...
The numbers in the report are good, Wire, and thank you for posting. I've plough through the User Manual on Dell's web site but could not find any references to the existence of "hardware LUTs"? I was looking for this feature in view of the excellent Gray-Scale Tracking behavior. As for the 'Gamut' tests, sRGB/AdobeRGB support, I don't think anyone could dispute the < 2 Avg dE value presented in the calibration report. But I'd like to see a comparison on more than a handful of color values? Perhaps DispCal can crank out a more "extensive" report than Dell but it's worth nothing the manufacturer's claim is based on a set 32 color samples (8 GS values + 4 Red + 4 Green + 4 Blue + 4 Y + 4 C + 4 M), according to my reading of the report. I'll bet the results based on a broader sample set will still be very acceptable, Wire? (Didn't you already tested this with DispCal?) The gray levels graph suggest that the unit is plenty gamma-corrected, out of the box. The Brightness Uniformity figures are hard to resist / beat, though? Same as the Color Uniformity figures? I mean, those kinds of differences are minuscule to me -- almost too good to be true, but that's probably the state of good, quality displays these days 😊
Have you found that, when using one of the Presets (sRGB/AdobeRGB, whatever), that the display Luminance changes accordingly? I read something to that effect ....
Last but not least, this statement eluded me before:
User-enabled adjustments: Dell's software development kit, or SDK, enables customers with a proprietary colour solution to customize Dell UltraSharp Monitors with their preferred specifications. You can also fine-tune colour parameters, including RGBCMY saturation,RGBCMY hue, RGB and RGB offset.
It surely does not mean that there's a CD in the box, somewhere, containing an "SDK" for you or the casual color management hobbyist to get into programming the display directly?
/ Roger
-----Original Message----- From: colorsync-users <colorsync-users-bounces+graxx= videotron.ca@lists.apple.com> On Behalf Of Wire ~ via colorsync-users Sent: January 4, 2020 5:58 PM Cc: 'colorsync-users?lists.apple.com' List < colorsync-users@lists.apple.com> Subject: Re: NEC PA271Q "Native" chromaticities
On Sat, Jan 4, 2020 at 2:44 PM Roger Breton via colorsync-users < colorsync-users@lists.apple.com> wrote:
Wire, Do you mind posting a scan (photo) of that certificate?
I added the report:
https://drive.google.com/open?id=1DSpUzIAgxsiG8qi8FKr2uJ5_P4MNmTKu _______________________________________________ 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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This email sent to graxx@videotron.ca
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I've added a DisplayCall measurement report for this displays sRGB preset mode. I was a little unsure about posting such reports earlier per my caveat about this DTP94 colorimeter, but since I got the correction file I prev mentioned, everything's adding up. Switching between presets for 6500K and my measured native-mode custom profile yield no visible difference in white point. I was seeing a deviation before, and not knowing to what to attribute it. Adobe RGB verification forthcoming. On Sat, Jan 4, 2020 at 9:30 PM Wire ~ <wire@lexiphanicism.com> wrote:
Whoops, it's UP2516D, not 2916
Yes max brightness is slightly reduced by using calibrated modes compared to native, as is max gamut. Slightly.
The great guys at DisplayCal have included a DTP94+UP2516D colorimeter correction file referenced to i1pro. Working with this I'm finding a slight change in white point and good repeatability. This may let me punt on getting an i1 for now. Fantastic!!
I turned off uniformity compensation, pre-cal'd white and dark grey using DCal's pre-measurement feature, then re-profiled. This produces a perfectly matched pair that look right in every way I know how to judge, plus per above full native mode opens up brightness and gamut a smidge as compared to using the display's 6500 preset. And uniformity looks very acceptable. dE Max is still hitting 2.x, dE RMS 1. I added another iphone screen grab which nicely shows off the matching. I'm super stoked.
Re Dell SDK I saw that too and have the same questions as you. There's no software in the box, as you would expect in this mature age of the webz...
Re built-in LUTs: Wasn't Graeme of ArgyllCMS posting here a week ago that video nerds take this feature for granted 'cause lots of their tools are not color managed—not the way DTP folks think about it. Like they will have a whole pipeline that assumes 709 or SLog or who-knows-what and give the display whatever personality needed via its LUT? Also there's the MadVR stuff that's a renderer for high-end home theater. I use Kodi media viewier (was Xbox Media Center back in day) and it has support for loading a 3D LUT profile. Again this is stuff that's been in video for a decade or more is now being commodified.
I'll run a DisplayCal verification report on the built-in Adobe RGB mode. It will look at more color and we'll see...
On Sat, Jan 4, 2020 at 16:40 Roger Breton via colorsync-users < colorsync-users@lists.apple.com> wrote:
In fairness, I had to change the title of the thread...
The numbers in the report are good, Wire, and thank you for posting. I've plough through the User Manual on Dell's web site but could not find any references to the existence of "hardware LUTs"? I was looking for this feature in view of the excellent Gray-Scale Tracking behavior. As for the 'Gamut' tests, sRGB/AdobeRGB support, I don't think anyone could dispute the < 2 Avg dE value presented in the calibration report. But I'd like to see a comparison on more than a handful of color values? Perhaps DispCal can crank out a more "extensive" report than Dell but it's worth nothing the manufacturer's claim is based on a set 32 color samples (8 GS values + 4 Red + 4 Green + 4 Blue + 4 Y + 4 C + 4 M), according to my reading of the report. I'll bet the results based on a broader sample set will still be very acceptable, Wire? (Didn't you already tested this with DispCal?) The gray levels graph suggest that the unit is plenty gamma-corrected, out of the box. The Brightness Uniformity figures are hard to resist / beat, though? Same as the Color Uniformity figures? I mean, those kinds of differences are minuscule to me -- almost too good to be true, but that's probably the state of good, quality displays these days 😊
Have you found that, when using one of the Presets (sRGB/AdobeRGB, whatever), that the display Luminance changes accordingly? I read something to that effect ....
Last but not least, this statement eluded me before:
User-enabled adjustments: Dell's software development kit, or SDK, enables customers with a proprietary colour solution to customize Dell UltraSharp Monitors with their preferred specifications. You can also fine-tune colour parameters, including RGBCMY saturation,RGBCMY hue, RGB and RGB offset.
It surely does not mean that there's a CD in the box, somewhere, containing an "SDK" for you or the casual color management hobbyist to get into programming the display directly?
/ Roger
-----Original Message----- From: colorsync-users <colorsync-users-bounces+graxx= videotron.ca@lists.apple.com> On Behalf Of Wire ~ via colorsync-users Sent: January 4, 2020 5:58 PM Cc: 'colorsync-users?lists.apple.com' List < colorsync-users@lists.apple.com> Subject: Re: NEC PA271Q "Native" chromaticities
On Sat, Jan 4, 2020 at 2:44 PM Roger Breton via colorsync-users < colorsync-users@lists.apple.com> wrote:
Wire, Do you mind posting a scan (photo) of that certificate?
I added the report:
https://drive.google.com/open?id=1DSpUzIAgxsiG8qi8FKr2uJ5_P4MNmTKu _______________________________________________ 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
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This email sent to wire@lexiphanicism.com
Not sure how the DCal reports I've shared will manifest when accessed? They're self-contained html with some local active form elements to allow a menu. https://drive.google.com/drive/mobile/folders/1bxq64ybCYUxh4USCHPG99Q8Bp3-iG... The Adobe RGB measurement report plot shows worse gamma tracking than sRGB, but don't know why. I don't know how to read that graph. Also are some options in DCal to adjust the way it handles blacks when making a report, I need to look into it...
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Wire ~