Re: Monitor Calibration
Re: Monitor Calibration
- Subject: Re: Monitor Calibration
- From: Dan Reid <email@hidden>
- Date: Mon, 11 Dec 2000 11:31:17 -0700
On Fri, 8 Dec 2000 15:13:17 EST, email@hidden wrote:
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In a message dated 12/8/00 1:02:14 PM, email@hidden writes:
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>You'll find a lot more people using 6500 these days, especially if they
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don't
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>work in caves... a little ambient light can make life more pleasant, and
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6500
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>can handle a little more ambient light.
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>
But how then does one's image on a 6500K calibrated monitor compare with the
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proof when viewed in the same room using a 5000K viewer?
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>
Harold Burns
The target white point of a computer monitor is only part of the equation.
The first question is what paper stock will you be evaluating? If its
commercial paper stock with a slight yellow paper base 5000K would be a
smarter choice. If your looking at bright glossy inkjet papers than 6500K
could give you a closer visual match.
The biggest factor that most people neglect to mention is the luminance
level. Most have experienced dingy yellow monitors not because of the white
point being calibrated to 5000K but because the luminance level is reduced
to an unacceptable level when compared to a light box. I have had excellent
results with 5000K white point and 100cd/m2 level. You may not be able to
achieve the target luminance level depending on how old your monitor is. If
your computer display allows each primary phosphor guns to be adjusted boost
the red gun to 100% and drop the green to 70% and blue around 60%. Obviously
these are just starting points that you should tweak using an emissive color
measurement device. Drop your contrast setting if the luminance level is too
high. If you can't get a good luminance level consider the 6500K target
white point which will give you a little more luminance range.
I am still able to get a great *dynamic range* out of my 2+ year old
Lacie that runs all day without energy saver kicking in. So bottom line is
look towards matching the luminance level closely to light box and pick a
white point close to your printed stock.
--
Dan B. Reid
RENAISSANCE PHOTOGRAPHIC IMAGING
Color Imaging Solutions Provider
http://www.rpimaging.com | email@hidden
Toll Free: (866) RGB-CMYK [ 866-742-2695 ]