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calibrating two screens without hardware?

silk186

silk186

[H]ard|Gawd
Joined
Feb 26, 2008
Messages
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I have an ASUS VE247H monitor that I was happy with and recently purchased a Samsung LE40A456C2D 40" LCD to sit beside it. At first the 40"didn't look great next to my 24". I adjusted the 40" based on a profile online I found. The color were more accurate, especially the skin tones but it looked a bit washed out. After more fiddling I managed to get very acceptable colors. Unfortuatly it now makes my 24" look bad next to it. Looking online briefly it seems that colors on a computer screen are adjusted through software. My question is how can I adjust the colors öf the 24" without a colorimeter and if I can do it through software independently of the 40"

I assume anyone with a multi-monitor set-up with different brands has delt with this issue.
 
There is no way to calibrate monitors without a colorimeter.

Here's a great, relatively inexpensive one: http://www.bhphotovideo.com/c/product/798928-REG/X_Rite_CMUNDIS_ColorMunki_Display.html

silk186 said:
After more fiddling I managed to get very acceptable colors.
Unfortuatly it now makes my 24" look bad next to it.
Click to expand...

Lines like this get me, and they're in every thread about this particular topic. "Acceptable colors" based entirely on your eye-sight; you could literally enjoy a white point of 8000K and oversaturated color (highly inaccurate), but there's no way to tell unless the screen is measured.

Anyway, your VE247H is a run-of-the-mill, low-cost TN panel, it's not surprising to hear that it looks awful compared to your TV.
 
silk186 said:
the colorimeter you recommended costs more than my monitor
Click to expand...

You can't calibrate a screen without a colorimeter, other than just setting what you think looks best. Downloading a profile is not ideal either might end up worse than no profile.. probably looks washed out because it can lower the contrast.
 
I remember years ago my CRT coming with a piece of paper with colored squares that stuck too the screen and a CD I used to calibrate with.
 
If your "non reference" monitor has RGB gain and bias settings, you could try matching the white point across the grayscale relative to the other monitor.

Also possible to do with the videoLUT but probably tricky.
 
Sorry for hijack but is calibrating a screen even worth it? Is the difference visible? Can it also be used for a TV screen with a HTPC?
 
myst4ry said:
Sorry for hijack but is calibrating a screen even worth it? Is the difference visible? Can it also be used for a TV screen with a HTPC?
Click to expand...

Yes, yes and yes. TVs are actually usually the worst offenders with way oversaturated colors etc that some people refer as colors "popping". Accurate color reproduction by comparison will look more "washed out".
 
kasakka said:
Yes, yes and yes. TVs are actually usually the worst offenders with way oversaturated colors etc that some people refer as colors "popping". Accurate color reproduction by comparison will look more "washed out".
Click to expand...

Thx for the info.

Just curious, why don't display companies just sell their displays pre-calibrated? Is it just to make more money by selling calibrating devices, or does the calibration depend on the lighting in the room or something?
 
myst4ry said:
Thx for the info.

Just curious, why don't display companies just sell their displays pre-calibrated? Is it just to make more money by selling calibrating devices, or does the calibration depend on the lighting in the room or something?
Click to expand...

They are; some factory calibrations are > others.
 
myst4ry said:
Thx for the info.

Just curious, why don't display companies just sell their displays pre-calibrated? Is it just to make more money by selling calibrating devices, or does the calibration depend on the lighting in the room or something?
Click to expand...

My U2713HM is factory calibrated. It requires less tweaking to get calibrated than my Samsung 22" TN panel (which requires ridiculous RGB settings 18-15-35), but it's still worth the effort to do the calibration. My Dell is 84-86-84, which is the indication of how well it does from the factory.
 
myst4ry said:
Thx for the info.

Just curious, why don't display companies just sell their displays pre-calibrated? Is it just to make more money by selling calibrating devices, or does the calibration depend on the lighting in the room or something?
Click to expand...

It depends somewhat on the lighting in the room. Often the displays aimed at graphic professionals or otherwise premium models come better calibrated from the factory. For example my ASUS ROG Swift was perfect from the factory aside from an absurd brightness setting.

The worst I've had was a Viewsonic VA panel that could not be calibrated to accurate colors no matter what I did.
 
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