Entering Rgb Setup Information - Adobe PHOTOSHOP 5.0 User Manual

84 CHAPTER 5
Reproducing Color Accurately
Deselect View Single Gamma Only to adjust the
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gamma based on Red, Blue, and Green reading.
Drag the slider under each box, until the center
box matches the patterned frame.
The gamma setting of your monitor defines how
bright the midtones are.
For Desired, choose the target gamma you
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want. For example, the default target gamma in
Windows is 2.2 and in Mac OS is 1.8.
Note: This option is not available on Windows
systems that cannot control the monitor.
For Hardware, choose the white point of your
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monitor as described by your monitor's manufac-
turer. This setting determines whether you are
using a warm or cool white. To measure the
hardware white point, choose Measure and follow
the instruction on-screen.
For Adjusted, if you know the color temper-
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ature at which the finished image will be viewed,
choose it here. Otherwise, choose Same As
Hardware. Only choose a different setting to work
at a different white point than your monitor's
factory-specified hardware setting.
Note: This option is not available on Windows
systems that cannot control the monitor.
Click the close button on the window.
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15 Save the settings.
To calibrate multiple monitors:
1 Drag the Adobe Gamma control panel onto the
secondary monitor.
2 Repeat the calibration steps for that monitor.
3 Deselect Use As Default Monitor Profile in the
Adobe Gamma control panel unless you want the
secondary monitor's profile to be used as the
default monitor profile for all of your monitors.

Entering RGB setup information

The RGB Setup dialog box lets you describe the
RGB color space in which to edit RGB images. This
space is usually different from the monitor's RGB
definition (listed in the bottom part of the RGB
Setup dialog box), so that you can create RGB
images without being restricted by a particular
monitor's limitations.
The default settings are generally the most appro-
priate. You should change them if you need to
specify a different RGB space.
Note: RGB Setup is not the same as Monitor Setup
in Photoshop 4.0. To set up your monitor, use the
Adobe Gamma utility as described in "Calibrating
your monitor" on page 82.
To enter RGB setup information:
Choose File > Color Settings > RGB Setup.
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Select Preview to display a preview of your
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changes.
For RGB, choose one of the following:
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sRGB for the standard RGB color space.
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This color space is endorsed by a wide variety
of hardware and software manufacturers and is
becoming the default color space for many
scanners, low-end printers, and software
applications.