NEC lcd 2490 auto luminance question

[bcwang]

Any LCD2490 owners out there try out auto luminance? On mine, setting 1 doesn't seem to do anything, while setting 2 and 3 turn a white screen very yellow, like a white balance change. Have other owners of this monitor tried it and seen the yellow shift as well? I wonder if you're supposed to activate it first before calibration, and that will make it look right.

This feature seems to be that x-light pro feature that is mentioned in some brochures, but not mentioned in any documentation. I just wonder if it's supposed to be on setting 1, 2, or 3 for optimum performance. I'd think setting 3 is the best (auto luminance and auto color) for keeping stability, but right now it's messing up my colors.

Someone else with a 2490, please let me know if turning on auto luminance to setting 2 or 3 makes your screen yellower than when it's off.

Thanks!

 

[gersson]

bump Im curious too (2690wuxi)

 

[albovin]

Any LCD2490 owners out there try out auto luminance? On mine, setting 1 doesn't seem to do anything, while setting 2 and 3 turn a white screen very yellow, like a white balance change. Have other owners of this monitor tried it and seen the yellow shift as well? I wonder if you're supposed to activate it first before calibration, and that will make it look right.

This feature seems to be that x-light pro feature that is mentioned in some brochures, but not mentioned in any documentation. I just wonder if it's supposed to be on setting 1, 2, or 3 for optimum performance. I'd think setting 3 is the best (auto luminance and auto color) for keeping stability, but right now it's messing up my colors.

Someone else with a 2490, please let me know if turning on auto luminance to setting 2 or 3 makes your screen yellower than when it's off.

Thanks!

setting 1 doesn't seem to do anything

Setting 1 (Stabilize Luminance) reduces brightness of white and black.

setting 2 and 3 turn a white screen very yellow

Setting 2 (Stabilize Color) sends color temperature from Native to about 5000K that makes the screen yellower.
Setting 3 (Stabilize Luminance and Color) reduces brightness of white and black and sends color temperature from Native to about 5000K.

This feature seems to be that x-light pro feature

Yes. Pro-feature for Pro-users.

I wonder if you're supposed to activate it first before calibration, and that will make it look right.

Bingo.
This setting is a part of a set of SpectraView setting (pardon this tautology) which can be switched on by choosing "SpectraView Settings On" in Tag #10 of Advanced OSM by pressing Input+Down controls simultaneously. This is supposed to create sterile - up to professional color critical work requirements - environement and a good starting point for SpectraView calibration. BTW SpectraView settings is a number of features you can activate separately without retrieving "SpectraView Settings On" from Tag E.
Another note - you can calibrate your NEC with SpectraView II even without activating any of those Pro features.

I just wonder if it's supposed to be on setting 1, 2, or 3 for optimum performance.

Not necessarily if you are not a Pro.
After calibration everything returns to a normal condition (to a programmed condition, to be precise), no yellow tint any more, Auto Luminance is set to 1.

I'd think setting 3 is the best (auto luminance and auto color) for keeping stability, but right now it's messing up my colors.

It's a preliminary setting for Pro calibration.
I don't think you need it for everyday use.
I never use this feature while calibrating the monitor as my panel looks perfect without ColorComp, etc. and I don't do color critical work.
I use my panel just to please my eyes what the NEC 2490WUXi really does.
Edit: misprint corrected - Tag E (not 10) is correct for SV settings.

 

[gersson]

Thanks for the information.

I'd like to know where you got it from -- is there a link you can cite? I'd like to give it a read. It is tauted as a great feature. However, when enabled in the spectraview software, I wind up with ~40 less contrast ratio.
Thanks

 

[10e]

All this good stuff is in the manual.

Here's a link so you don't have to dig it out of the box (for the 2690)

http://www.necdisplay.com/cms/documents/UserManuals/LCD2690WUXiBK_UserManual.pdf

Same manual for both LCD2490 and LCD2690. Page 16 explains the Auto Luminance feature.

Excellent manual for an excellent monitor.

I like setting number 1 best so far.

10e

Thanks for the information.

I'd like to know where you got it from -- is there a link you can cite? I'd like to give it a read. It is tauted as a great feature. However, when enabled in the spectraview software, I wind up with ~40 less contrast ratio.
Thanks

 

[albovin]

Thanks for the information.

I'd like to know where you got it from -- is there a link you can cite? I'd like to give it a read. It is tauted as a great feature. However, when enabled in the spectraview software, I wind up with ~40 less contrast ratio.
Thanks

I've got it from the manual and from my experience with this monitor.
Yes, pro- features reduce contrast ratio a little. That's normal.
Corrected misprint - Tag E is for SV settings, not #10.

 

[Biges]

Yeah, it is in the manual.
However, I don't use this optin, I prefer to adjust it myself