Eizo ColorEdge CG210 - Manual (Page 3)

Factory Adjustment Of Gamma
Each ColorEdge
monitor is adjusted at
the factory to a gamma
level of 2.2. This is ac-
complished by measuring
the R, G and B gamma
values from 0 – 255,
then using the monitor’s
10-bit Look-Up Table
(LUT) with its 1,021-tone
palette to select the 256
most appropriate tones to
achieve the 2.2 value. Us-
ers can also set their own
values from 1.0 to 2.6
with the ColorNavigator
software.
This is important
because accurate, non-
fluctuating gamma values
are necessary for the
proper display of color. If
colors are not based on
specific values and cannot
be adjusted, images will
be displayed differently
by different monitors.
ColorEdge monitors pro-
vide both precision and
consistency, so graphics
professionals can be sure
that the final product will
look exactly the way they
want it to. In fact, each
monitor comes with an
adjustment certificate that
certifies the measurement
results of the gamma value.
Accurate Color Temperature
Another important factor in achieving accurate, natural colors,
especially for midtones, is setting the proper color temperature for
white (white point). ColorEdge monitors are exceptionally versatile in
this regard, providing color temperature adjustment from 4,000 K to
10,000 K in 100 K increments with ColorNavigator software and se-
lect measuring devices. This wide range ensures that users can achieve
the optimum color temperature for any type of work, such as “paper
white” for DTP.
Brightness Stabilization
Constant, non-fluctuating brightness is necessary for the proper
display of color. An EIZO-patented drift correction function quickly
stabilizes the brightness level upon startup or wakeup. In addition, a
sensor measures the backlight brightness of the LCD and compensates
for any brightness fluctuations caused by the ambient temperature or
the passage of time.
ON-SCREEN IMAGE
GAMMA CURVE
Brightness Brightness
256 Tones 256 Tones
Color Seepage Tonality Breakup Smooth Grayscale Display
= 2.2 Uncorrected
Gamma Curve
Ideal Gamma Curve Ideal Gamma Curve
10-Bit Gamma Correction
Wide Color Space
The CG220 is capable of
displaying the Adobe RGB color
space, meaning it not only covers
the sRGB color space supported
by many computer monitors,
operating systems and digital
cameras, but the ISO-coated and
US web-coated CMYK color
spaces used in printing as well.
This makes it possible to achieve
a standard color space for all
work from photography to printing. The CG210 and CG19 cover a
color space approximately equal to sRGB, giving them color reproduc-
tion capabilities on par with high-end CRT monitors.
14-Bit Processing
The ColorEdge CG220 and CG210 incorporate
a powerful new EIZO-developed ASIC (applica-
tion specific integrated circuit) with 14-bit color
processing capability (16 times more accurate than
10-bit). This allows a larger number of grayscale
increments, for grayscale rendering that is on a par with high-end CRT
monitors. The result is a much greater degree of color detail, especially
in dark areas and shadows.
Portrait Mode Support for
Macintosh and Windows
The ColorEdge CG210 provides built-in support for portrait mode
with the EIZO’s exclusive ActiveRotation II technology. The monitor
includes a gravity sensor, so it “knows” when it is being rotated, and
changes between portrait and landscape modes accordingly. Because it
is hardware-based, ActiveRotation II does not absorb CPU power or
compromise graphics performance. It supports Macintosh OS 9/X and
Windows 2000/XP platforms.
Graphics board support for ActiveRotation II varies by manufacturer and model.
With some graphics boards, it may be necessary to change the resolution on the PC
side or restart the computer after rotating the screen. For details on graphics board
support, please see www.eizo.com/support/compatibility/
SWOP Certification
The ColorEdge CG220 and CG210 are part of the
SWOP-certified Remote Director – a monitor-based proof-
ing system from Integrated Color Solutions, Inc. SWOP
certification means graphics professionals can use this system in place
of hardcopy proofs and perform all color checks on-screen.
5-Year Warranty
EIZO and its authorized distributors offer a five-year
limited warranty for all ColorEdge monitors.
The Hardware: Consummate Performance and Functionality
14-bit v. 10-bit processing
Error Rate (%)
0
2
1
0
-1
-2
-3
2
1
0
-1
-2
-3
32 64 96 160 192 224 255 128 0 32 64 96 160 192 224 255 128
Error Rate (%)
Internal 14-Bit Processing Internal 10-Bit Processing
Tones (0 – 255) Tones (0 – 255)
With 10-bit processing, the error rate is high in low tonal areas during calcula-
tion. With 14-bit processing, accuracy is significantly improved resulting in
fewer conversion errors.
Each monitor adjusted individually at the
factory. (For illustrative purposes only. Actual
adjustment is performed in a darkroom.)
Color Reproduction Area
(xy Coordinate)
Adobe RGB
sRGB
ISO Coated
Color
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1
y
x