I have a few bad experiences with NEC sales and support after couple of purchase with them and had returned the last purchase. I am not going for another NEC product.
Probably going for an EIZO the next time.
I will try to calibrate this monitor with my i1Pro /i1Profiler with the USB dongle and see if uniformity get worst in this case.
"These reading fits what i am seeing on the display."
NO, they doesn't. You cannot see that, and if you see that, these values from factory report do not match actual monitor behaviour at factory settings.
dC<1 color shift are Eizo coloredge or NEC spectraview specs (but across a wide number of settings of brightness and whitepoint, that's why they cost so much)
If you see that, it means some of the following:
-factory report claims non true facts
-you lowered brightness from factory 50% setting (which is too bright for most uses) to your desired target and/or you configure your dell monitor to your desired white point (wp) which do not mach factory setting (as usual). The lower brightness goes from factory setting and the further wp goes from native wp, the more noticeable uniformity issues are. This happens in any monitor, but if it was a good monitor drift could be negible. Keep in mind that factory report is done at brightness 50% contrast 50%, so it may be true but that specs does not hold at your brightness/wp current configuration. If you spotted uniformity issues at your current configuration they are over 1dC
Anyway, it seems that Dell does not offer uniformity specs in their products, if you need that features go for Coloredges or spectraviews.
...and i1Pro is an spectrophotometer, not a colorimeter. If you whish to perform some kind of uniformity check by yourself, better to use ArgyllCMS (GNU, all OSes) and if you have an i1Pro (not an i1DisplayPro), better to do not blindly trust dark grey measurements (25%) in HTML uniformity report, check dC at 50%, 75% or 100% grey instead. If measurements report bad uniformity, try to get an exchange and good luck
i1Profiler won't report color uniformity properly. It will do it in Kelvins drift, but color correlated temperature (CCT) is not a valid value to locate a one to one white color: different "white" colors may have same CCT, you need a distance value (green-red shift) to some well known curve (yellow-blue, daylight curve for example) white which i1Profiler does not report. That's why I suggested to use ArgyllCMS which reports WP deviations from center in deltaC, that is the proper way to test it.
Calibrate in i1Profile instead DCCS hardly will improve your uniformity results. It's a a matter of distance fron native WP an brightness/contrast settings. DCCS calibrating via ADC should aim to "good" uniformity settings since tries to raise brightness a little lowering contrast a little (at the cost of 700:1 800:1 contrast)
NEC has several "product levels". For products "lower" than Spectraview PA (or even the less spec'd Multisync PA) series best to stay in mainstream vendors like Dell, Asus or BenQ. It that kind products best to stay away from "premium vendors" like NEC, same applies to Eizo. Much more money for little or none added value. May be that was the case of your past issues with NEC (NEC EA????? models, maybe?)
In Spectraview or Coloredge widegamut products each dollar or euro spent on them is worthly.
Xisaac
2 Posts
0
April 28th, 2015 02:00
Thanks for the informations yumi,
I have a few bad experiences with NEC sales and support after couple of purchase with them and had returned the last purchase. I am not going for another NEC product.
Probably going for an EIZO the next time.
I will try to calibrate this monitor with my i1Pro /i1Profiler with the USB dongle and see if uniformity get worst in this case.
yumichan
3 Apprentice
•
739 Posts
0
April 28th, 2015 02:00
"These reading fits what i am seeing on the display."
NO, they doesn't. You cannot see that, and if you see that, these values from factory report do not match actual monitor behaviour at factory settings.
dC<1 color shift are Eizo coloredge or NEC spectraview specs (but across a wide number of settings of brightness and whitepoint, that's why they cost so much)
If you see that, it means some of the following:
-factory report claims non true facts
-you lowered brightness from factory 50% setting (which is too bright for most uses) to your desired target and/or you configure your dell monitor to your desired white point (wp) which do not mach factory setting (as usual). The lower brightness goes from factory setting and the further wp goes from native wp, the more noticeable uniformity issues are. This happens in any monitor, but if it was a good monitor drift could be negible.
Keep in mind that factory report is done at brightness 50% contrast 50%, so it may be true but that specs does not hold at your brightness/wp current configuration.
If you spotted uniformity issues at your current configuration they are over 1dC
Anyway, it seems that Dell does not offer uniformity specs in their products, if you need that features go for Coloredges or spectraviews.
...and i1Pro is an spectrophotometer, not a colorimeter. If you whish to perform some kind of uniformity check by yourself, better to use ArgyllCMS (GNU, all OSes) and if you have an i1Pro (not an i1DisplayPro), better to do not blindly trust dark grey measurements (25%) in HTML uniformity report, check dC at 50%, 75% or 100% grey instead. If measurements report bad uniformity, try to get an exchange and good luck
yumichan
3 Apprentice
•
739 Posts
0
April 28th, 2015 04:00
i1Profiler won't report color uniformity properly. It will do it in Kelvins drift, but color correlated temperature (CCT) is not a valid value to locate a one to one white color: different "white" colors may have same CCT, you need a distance value (green-red shift) to some well known curve (yellow-blue, daylight curve for example) white which i1Profiler does not report. That's why I suggested to use ArgyllCMS which reports WP deviations from center in deltaC, that is the proper way to test it.
Calibrate in i1Profile instead DCCS hardly will improve your uniformity results. It's a a matter of distance fron native WP an brightness/contrast settings. DCCS calibrating via ADC should aim to "good" uniformity settings since tries to raise brightness a little lowering contrast a little (at the cost of 700:1 800:1 contrast)
NEC has several "product levels". For products "lower" than Spectraview PA (or even the less spec'd Multisync PA) series best to stay in mainstream vendors like Dell, Asus or BenQ. It that kind products best to stay away from "premium vendors" like NEC, same applies to Eizo. Much more money for little or none added value. May be that was the case of your past issues with NEC (NEC EA????? models, maybe?)
In Spectraview or Coloredge widegamut products each dollar or euro spent on them is worthly.