LaRZ said:
heya
here
is a quick image I made in Photoshop for an oil painting its a bmp at 1680 x 1050 and has many bluetones. If set as background you will notice in Native mode there is all the tones the steps in colour are just a few mm appart and even, but when you switch to 9300 k mode the panel drops out of full 8 bit(native mode) and then there is colour banding every inch or so my artwork
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I guess the question I was looking for, was "Can this monitor display full 8 bit colours with 9300k whites?"
and I guess the answer would be no.
or at least I can't get it to.
Native mode is at 6500k by the looks of it = the reason for the yellow whites.
It still does a great job but personally I find Native mode useless because of the warmth of the backlight @ 6500k, So I'll have to put up with colour banding @ 9300k ?
Thank you muchly for your input
Hi Larz, long time no see
If you are still around this thread, I found the solution for your colour problems @ 9300K colour temperature and hopefully you will read this post.
When playing with the contrast and brightness settings, you have to be careful not to damage the colour shades and gradients (typically darker midtones), especially when changing the monitor colour temperature. Here is the good guidance for you:
http://www.drycreekphoto.com/Learn/Calibration/monitor_gradient.htm
While playing with your contrast/brightness and/or colour temperature (in your case 9300K) settings and at the same time observing the gradient from the page above, you will see how the gradient is reacting to the brightness and contrast changes and you can easily find the sweet spot which will produce the less banding (if visible at all) and colour cast. Please note that only really expensive (colour critical) monitors can display the spotless gradients with the maximum number of exposed darkest shades from the colour gamut. According to the test from the above, NEC is doing very well.
I think that 50% contrast is optimal and brightness should not be less then 25% @ native colour mode. Try the "Monitor Grayscale Test Image" link from the above and you will see what I'm talking about. Values outside of those boundaries are definitely messing up the gradients and dark midtone shades. You may also try the "colour, gray and moire patterns" from the NaviSet testing patterns. Also, please note that if you change the monitor colour temperature, you have to adjust the contrast/brightness again to the optimal values by using test screens. Optimal values are not the equivalent between each colour temperature mode. When you set up your contrast/brightness, colour temperature and RGB balance properly, you should have same really nice, balanced and accurate colours. Also, your colour shades will not suffer and that will bring additional benefits. For your preferred 9300K colour temperature, optimal contrast is 70%
Good utility to display more info about the monitor:
http://www.entechtaiwan.com/files/moninfo.exe
It's intercepting the DCC/CI traffic and retrieving the monitor specification values. Apart from everything else, you may find the RGB and white point chromatic values:
Color characteristics
Display gamma............... 2.20
Red chromaticity............ Rx 0.640 - Ry 0.340
Green chromaticity.......... Gx 0.290 - Gy 0.610
Blue chromaticity........... Bx 0.145 - By 0.070
White point (default)....... Wx 0.313 - Wy 0.329
They are useful for the calibration tasks where you need to spec your monitor chromatic values (like with Adobe Gamma/Adobe Photoshop).
On the another note, I think that the supplied n20wgx2.icc colour profile, supplied with the monitor driver, when imported as custom colour correction ICC profile (Nvidia) is washing out the colours simply because of the incorrect gamma settings (usually default windows gamma is 2.2 for the ordinary display usage). I guess that if somehow gamma is normalised by modifying this ICC profile, it should be useful as the preferred colour calibration profile, working in pair with your graphics card. I will play a bit more with this and in case of any progress, I will post back the instructions.
If you are patient and really serious about the accurate colours (for the colour critical work), hardware colour calibrator is a way to go ... especially for the proper RGB balance. With the WYSIWYG calibration method, major problem is that you have to have the good eye. Another problem is that sometimes your eye can trick you what may seem to be the "natural colour". Third problem is that you need a LOT of patience and at the same time it's very harsh to your eyes and final results are really questionable.
*** For the all 20WGX2 users ***
I would warmly recommend that you load the test page from the above and correctly adjust your brightness & contrast settings. It's visually easy (you will easily find the sweet spot) and at the same time you will benefit from the accurate gradient shades.
. Just a little frustrated at this now, I see a lot of ppl getting perfect screens and I seem to be hated by the fates as each ones had an issue.
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It's really really rare case that someone swap the monitors to such extent. Usually they settle on second one, rarely third.
