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Why re-calibrate my monitor regularly?

post #1 of 4
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I work with production color printers and do some graphic design, and I'm familiar with color management. I use the densitometer to scan the CMYK patches to calibrate the color printers every morning and every time I use a different type of paper.

My focus overall is much more toward print.

So I understand why a color printer needs to be calibrated regularly. Everything from temperature, humidity, toner consistency, stock type etc can effect how a CMYK value actually appears on the paper. If I come in on a Tuesday morning after a long weekend (printer hasn't been touched in 4 days) and print something without calibrating, there's noticeable flaws in color quality.

But what about monitors?

I'm sure there's variables at play that create a need to recalibrate your monitor regularly, but what are they? Does the backlight change intensity after a breakin period? Do the pixels behave differently?

I got a HP ZR22W and calibrator a couple weeks ago, I'm very happy with it.

(This is for my home computer, I don't do much graphic design or print proofing on this)

It just prompted me and recommended that I re-calibrate. It just made me wonder what factors are involved in determining monitor's color consistency, and what could cause it to change over time, requiring recalibration.

Thanks!
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Adrenaline
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post #2 of 4
I dont know about doing it regulary but LCD's wear out so maybe do it yearly?
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post #3 of 4
I've not noticed any color degradation on my monitor and I must say that I've never heard of anyone recalibrating regularly.
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post #4 of 4
On a CRT monitor there are numerous factors that may cause you to recalibrate often. On a CCFL backlit monitor, over time the backlights can dim and even slightly change colour, so you may want to check the calibration maybe once a year.

As for LED back lit monitors, they really haven't been out very long and I have not noticed any colour changes in our shop, so it's hard to say. However, if colour matching the monitor and print is important to you then I would recommend checking the calibration once a year as well. It can't hurt.
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