Message
Re: [colorvision_group] Calibrating Overly Bright Monitor
2007-08-12 by CDTobie@aol.com
In a message dated 8/11/07 7:02:05 PM, e1-f9gf-hhmt-g651@... writes:
Some modern LCD monitors are much too bright for photo editing when
set at the factory default settings (which is frequently full 100%
bright). But the instructions for Sypder2PRO tell us to set the
monitor to the default settings before calibrating.
Spyder2PRO then goes on to check your ambient light levels and recommend monitor luminance and whitepoint settings to relate to your ambient light levels... if you run the ambient light feature.
Unless I'm missing something (very likely) I see only two approaches
of calibrating such an overly bright monitor:
1) Ignore the instruction to use the factory default full-bright
setting, and set the brightness to a more appropriate level before
calibrating.
That would work if you magically knew the right monitor luminance to go with your ambient lumiance, but it would not measure your ambient light level, nor target a specific monitor luminance to go with it, so it would be a stab in the dark, instead of a controlled process. Additionally, it would not define a standard to recalibrate to, so the monitor would drift over time.
2) Leave the factory default full-bright setting, and during
calibration bring down the individual RGB levels significantly to not
only set the color temperature, but also to reduce the brightness to
an approprate level.
Thats using a wrench for a hammer. Since there is a carefully designed hammer in the Spyder2PRO toolbox, that seems rather a shame. Additionally, intentionally dropping levels from all three channels loses you levels, reducing the detail on screen, while dropping your backlight control via the white lumiance targetting feature does not.
What are the advantages and disadvantages of these two approaches, or
is there a still better way that I've missed?
I think I've covered all of that above. Define a target white luminance level, with the assistance of the ambient light tool, then use that target for all future calibrations.
C. David Tobie
Product Technology Manager
ColorVision Business Division
DataColor Inc.
CDTobie@...
www.colorvision.com
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