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Color gamut
After I got over the desire to drop-kick my entire system,
I learned it wasnt a problem with the printer or even
the monitor. What I discovered was that each device (monitor,
scanner, printer) sees and interprets color differently. Just
like the colors of an image would look different if viewed
as a print versus a slide, each of these devices produces
color in its own unique way. The trick to solving this problem
was to find the means to get them all to speak the same language.
The way to do this was by calibrating the devicescreating
specific profiles and using them to maintain a color-accurate
workflow.
Getting Ready
Although Adobe Photoshop includes a utility for optimizing
the output of the monitor, its not the best solution
because its subjective and heavily influenced by many
external factors, not the least of which is ones own
eyesight.
Yes, its better than nothing, but there are much more
effective options. Some are strictly software-based while
others include a colorimeter, a special measuring device that
reads brightness and color values directly off your CRT or
LCD.
Before using any of these options, you have to make sure that
your monitor is in a good location. No, Im not talking
about Tahiti; Im talking about where the display is
located in your office. The monitor shouldnt face a
strong light source like a window or a lamp, as that will
impact the appearance of the image on the screen. Ideally,
it should be in a room with minimal extraneous light or with
the means for blocking light with blinds or drapes.
The surroundings should be neutral in tone, from desk to walls,
as a strong saturated color affects how you see color on your
monitor. To minimize the impact of ambient light and color
on the monitor, consider a monitor shade, like the Hoodman
E-1323 HIPPA Desktop Hood ($49).
Its also important to leave your CRT monitor on for
at least half an hour before attempting calibration. This
allows the CRT to warm up and reach its optimal output. While
there are conflicting opinions on whether LCD monitors require
this, I recommend the same warm-up time as a CRT to play it
safe.
Software Calibration
A monitor has numerous controls for adjusting brightness,
contrast and color, whether its an LCD or a CRT. Although
the monitor may look fine straight out of the box, no display
will be perfectly adjusted for the purpose of editing photographs.
DisplayMate is an affordable software-based monitor calibration
system. Using a unique slideshow that includes specialized
test patterns with step-by-step instructions, the software
guides you toward achieving the best display possible. At
only $79, DisplayMate provides an inexpensive way to optimize
your monitor. While the process is still relatively subjective,
the exhaustive test patterns and instruction deliver good
results.
For increased precision, manufacturers such as ColorVision,
X-Rite and GretagMacbeth include a colorimeter with their
software packages. When placed on the screen, the device measures
brightness and color values that are produced by its color-calibration
software. Rather than depending on the perceptions of the
human eye, such a system delivers one of the most accurate
means for calibrating virtually any monitor.
Calibration packages are available for every budget, with
higher-priced products providing more control and customization.
The ColorVision Spyder2 ($189) and Spyder2 Pro Studio ($299)
are compatible with both Mac and Windows machines. Each offers
the ability to adjust individual color channels (red, green,
blue) using a customizable curve while the Studio version
allows you to match different monitors to the same target.
This process is all automated, making an advanced process
easy.
With X-Rites MonacoOPTIXXR ($249), you not only can
calibrate monitors, but flatbed scanners and printers as well.
The software includes a colorimeter and features a color target
that can be scanned and reproduced by the printer. This helps
in creating custom color profiles for the monitor, scanner
and printer, and produces consistent results, especially when
printing on different paper types.
The GretagMacbeth Eye-One Display 2 ($249) includes a precise
colorimeter that delivers high repeatability and consistent
profiling results, with higher sensitivity to dark areas for
improved performance in shadow areas. The Eye-One Match 3.2
software features gray balance optimization for improved neutrals.
It also includes several software tools to achieve improved
color agreement across multiple monitors.
For photographers who earn a living with their work, the higher-end
calibration systems are worthwhile, especially when providing
accurate color to a client is crucial. If youre on a
budget, however, or involved in less critical work, more affordable
systems will provide more than sufficient accuracy.
Maintaining Color Accuracy
Once youve calibrated your monitor, its important
to regularly repeat the process. Monitors age and their brightness
and color change over time. During their early life, the changes
are fairly subtle, but become greater as time passes. For
home use, calibrate your system monthly. For professionals,
its wise to calibrate your monitor every other week.
Calibrating my system has made a huge difference in my work.
I often can output a good print after producing a single test
print. That would have been unheard of with a non-calibrated
system. Printing is one of the joys of photography for me,
and a calibrated system ensures that it stays that way.
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