Calibration results @ ~90 cd/m²

casacki

n00b
Joined
Jun 20, 2008
Messages
6
Trying to avoid a threat title like "help me..."

Pls let me explain a little bit. Tests/reviews give a good idea what a display is capable of. Often you find test results concerning colors, video modes, games and so on (i.e. prad.de). Reading reviews and forums I end up with a short list:

nec2690, eizo cg241w, eizo sx2761w, eizo sx3061w, nec3090 (although the latter might be too heavy for my lcd arm).

There are 3 things I didn't find information on and therefore I would appreciate any comments:
  • How do the mentioned displays behave if you try to calibrate them @ 90 cd or even lower? Somehwere I read the nec2690 is supposed to loose it's superb quality if you try to go that low. Somewehre I heard displays might even not be able to give reasonable calibration results at all.
  • Do the displays support more than 1 Monitor LUT calibration? For instance if I work at bright ambient light during daytime 120 cd might be right, in evening hours I prefer 90 or even lower. (For the time being I am switching between different video LUT settings, but if the display is capable of monitor LUT setting, the video LUT won't be used anymore, right?)
  • While reading reviews on 30'' displays I get the impression those displays don't reach the image quality of their smaller relatives yet. So if I'm not especially looking for 2560*1600 a smaller display is recommended for the time beeing?
 
You can actually go down to 90 cdm2 on the NEC 2690 and switch between them. I found the way earlier in my tests how the best results can be achieved. I used the Auto luminance function on 3 (for brightness and color). Then after a long wait (first time it takes a long time), I could use it. The only thing is that you have less contrast. Black only goes down to a certain point and then its brightness will be cut. This is not a problem, since you still will have a full dynamic range of 8-bits per RGB. Contrast is basically a ratio between brightest white and darkest black. Only if you loose the dynamic range it becomes a problem. The Eizo Coloredge 221W only have 400:1 in contrast to begin with. On regular screens, reducing brightness can cause crushed blacks. This doesn't happen with the NEC due to a recalibration of the screens gamma and LUT.

The 2690 coupled with Spectraview have unlimited amounts of LUTs. You can make as many profiles as you want and load them from within Spectraview directly to the screen upon demand. Of course, you need to wait a bit between each change, since the screen internally adjusts its color and brightness to match the new LUT settings.

Profile in windows, brightness, color temp and other settings will also be adjusted automatically. Select profile of choice -> wait until monitor stabilizes -> enjoy new settings. Easy and pleasant.

There is no need for GFX calibration with Spectraview, though it loads the profile in the GFX LUT as well to avoid two different LUT setups. You need the profile though for color aware programs, since they access it when you use the program. As mentioned above, this is an automated process.
 
You can actually go down to 90 cdm2 on the NEC 2690 and switch between them. I found the way earlier in my tests how the best results can be achieved. I used the Auto luminance function on 3 (for brightness and color). Then after a long wait (first time it takes a long time), I could use it. The only thing is that you have less contrast. Black only goes down to a certain point and then its brightness will be cut. This is not a problem, since you still will have a full dynamic range of 8-bits per RGB. Contrast is basically a ratio between brightest white and darkest black. Only if you loose the dynamic range it becomes a problem. The Eizo Coloredge 221W only have 400:1 in contrast to begin with. On regular screens, reducing brightness can cause crushed blacks. This doesn't happen with the NEC due to a recalibration of the screens gamma and LUT.

The 2690 coupled with Spectraview have unlimited amounts of LUTs. You can make as many profiles as you want and load them from within Spectraview directly to the screen upon demand. Of course, you need to wait a bit between each change, since the screen internally adjusts its color and brightness to match the new LUT settings.

Profile in windows, brightness, color temp and other settings will also be adjusted automatically. Select profile of choice -> wait until monitor stabilizes -> enjoy new settings. Easy and pleasant.

There is no need for GFX calibration with Spectraview, though it loads the profile in the GFX LUT as well to avoid two different LUT setups. You need the profile though for color aware programs, since they access it when you use the program. As mentioned above, this is an automated process.

Thanks. I really can't wait to finally get my hands on a calibrator (or calibrators :) )...
 
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