The following steps are the best advice
I can find.
However, as I am just an amateur, I do
not work in a dimly lit room. I have
the lights on (with daylight bulbs) with the screen facing away from a window
and without any bright reflections on it. It
may not be perfect, but the results I get I am very happy with.
I also re-adjust the Contrast and
Brightness, after following the advice below, so that I can just see the 252 and
8 numbers on the homepage of this website.
If you have a LCD screen, then start
with your setting a maximum and see if you can improve things to be able to see
the 252 and 8 numbers.
To set the Black point for a CRT
monitor...
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1.
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Set the room lighting to normal image
editing condition. This should really be dim or moderate, not light.
Minimize possible glare.
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2.
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Allow the monitor to warm up for 1 hour.
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3.
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This method
needs a black background on the
desktop. Go to the Display
Properties, select Appearance-tab,
then choose Item=Desktop and
change it's color to Black. You
will have to turn off your background picture if you have one.
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4.
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Set the Contrast
to the maximum. It is best to keep it always at maximum, only
if the highlights are too light for your vision bring it down to a
suitable level.
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5.
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Set the Brightness
control of the monitor now to maximum as
the starting point.
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6.
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Locate the Vertical
Height control and make
the active scanned display area vertically smaller, so that a black border
will appear on top and at the bottom of the screen. This black area will
now give a perfect black reference point.
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7.
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Now adjust
the Brightness
control so that the visible background just merges with the black
of the non-scanned area. The setting has to be on the verge so that the smallest increase to it would make the
active scanned area discernible. I
find this quite hard, but go back and forth until you are happy that it
has just merged.
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8.
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Blackpoint
calibration is now complete- so adjust the scanned area back to how it was
and reset you background as before. They
say you should not adjust the Contrast,
but you can lower it if you want.
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