Dell UP2516D
Dell UP2516D
- Subject: Dell UP2516D
- From: Wire ~ via colorsync-users <email@hidden>
- Date: Sat, 4 Jan 2020 21:30:37 -0800
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 <
email@hidden> 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=
> email@hidden> On Behalf Of Wire ~ via colorsync-users
> Sent: January 4, 2020 5:58 PM
> Cc: 'colorsync-users?lists.apple.com' List <
> email@hidden>
> Subject: Re: NEC PA271Q "Native" chromaticities
>
> On Sat, Jan 4, 2020 at 2:44 PM Roger Breton via colorsync-users <
> email@hidden> 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 (email@hidden)
> Help/Unsubscribe/Update your Subscription:
>
>
> This email sent to email@hidden
>
> _______________________________________________
> Do not post admin requests to the list. They will be ignored.
> colorsync-users mailing list (email@hidden)
> Help/Unsubscribe/Update your Subscription:
>
>
> This email sent to email@hidden
>
_______________________________________________
Do not post admin requests to the list. They will be ignored.
colorsync-users mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden