HP LP2480zx (was RE: Monitor Recommendation???)
HP LP2480zx (was RE: Monitor Recommendation???)
- Subject: HP LP2480zx (was RE: Monitor Recommendation???)
- From: Roger <email@hidden>
- Date: Fri, 03 Jul 2009 05:58:25 -0400
I just had the chance to calibrate an HP LP2480zx with an i1pro, yesterday,
and it has got be one of the best hi-end monitors I have ever seen -- beats
the sh#t of all the usual brands. Never seen the kinds of advanced controls
found in this monitor. One gets to set the desired Luminance directly in
cd/m2, in the Brightness/Contrast section. One sets the desired CCT in
degrees Kelvin directly too. But unlike on many other LCD screens, the CCT
on this DreamColor happens to be very accurate. For instance, I selected
5000K and got almost perfect D50 chromaticies. There is a gamma setting, up
to 3 I think (left it at the defaut 2.2). And, get this, they have a section
for the "primaries"-- primaries? I thought? Yup, primaries, and displayable
in either CIE u'v' or CIE xy units. Never seen a monitor that boast
"primaries" yet. I haven't had the chance to compare with my manual
measurements (Minolta CS-100) but this shows the "seriousness" of this
monitor engineering for color work. The image quality is nothing short of
gorgeous -- could almost lick the screen. I tried creating a quick
horizontal gradient from black to white in Photoshop, thinking that I would
see some of the usual banding found in some of the other high end screens,
but no, this was perfect throughout. I manually set everything by hand,
Y=100, CCT=5000, gamma=2.2, and let iMatch did the profile at everything
native. Then I used PatchTool's GamutTools to build a CIELab list, for
testing the gamut against eciRGBv2. Used PatchTool's DisplayCheck to run the
calculated profile against this list and got, I think, oh!, an average of
less than 1.5 dE2000 with a max of 3 (or was it 4? Couldn't believe my eyes.
Of course, displaying the Macbeth ColorChecker in AbsCol was a cinch,
deltaEwise. The accuracy over the grays patches, in particular, was very
noteworthy.
All in all, an incredible unit. And I didn't find any grossly questionable
viewing angle issues. Nothing worse or better than what can be seen in other
hi-end brand name units. To my tired eye at least. Is there some standard
colorimetric test for determining the real range of useful viewing
conditions on a monitor, say with a non-contact colorimeter? Maybe a shift
in chromaticities as a function of viewing angle? Couldn't find anything
useful on the web.
Oh! Uniformity? Wow. I think it got better than 95% to 97% throughout the
screen, compared to the center. Both in Luminance and chromaticities.
I don't work for HP, by the way.
Roger
> -----Message d'origine-----
> De : colorsync-users-bounces+graxx=email@hidden
> [mailto:colorsync-users-bounces+graxx=email@hidden] De
> la part de Klaus Karcher
> Envoyé : 2 juillet 2009 16:06
> À : Jim Mitchell
> Cc : email@hidden
> Objet : Re: Monitor Recommendation???
>
> Fleisher, Ken wrote:
> > The Eizo CG210 and CG211 are S-IPS, but in my opinion they suffer
> from the
> > same viewing angle problems despite what other people say. Perhaps
> not as
> > bad as S-PVA, but the problem is still there. Maybe the newer H-IPS
> panels
> > have better performance than S-IPS, but I haven't seen any myself so
> I can't
> > say.
>
> I'm fairly comfortable with the viewing angle of the Eizo CG20, even
> though I wouldn't recommend to use it with more than two people looking
> at it a the same time (even with two it can get difficult) -- it
> beats
> the pants off e.g. the cheaper Eizo S-Models with (S-)PVA or TN panels
> (the Eizo CG 301 has a S-PVA panel).
>
> My HP DreamColor LP2480zx (IPS Panel) suffers less from viewing angle
> issues than the EIZO CG210. I guess it would work even with three
> people
> at the same time.
>
> In general IPS panels offer the widest viewing angles and least
> angle-depended color shifts.
>
> <http://www.prad.de/en/guide/ausstattung_auswahl.html> has a fairly
> comprehensive monitor database that allows to constrain searches e.g.
> to
> certain panel types.
>
> Klaus Karcher
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