Eizo COLOREDGE CG21, COLOREDGE CG18 User Manual

COLOR CALIBRATION LCD MONITORS

Color accuracy and calibration for turning

creative vision into reality.

FACTORY ADJUSTMENT OF GAMMA

Not only are the
ColorEdge models de­signed for accurate color
reproduction, but each
unit is adjusted at the
factory to a gamma value
of 2.2. This is accom­plished by measuring the
R, G and B gamma values
from 0 – 255, then using
the monitor’s 10-bit
Look-Up Table (LUT)

Each monitor adjusted individually at the
factory. (For illustrative purposes only.
Actual adjustment is performed in a
darkroom.)

with its 1,021-tone palette to select the 256 most appropriate tones
to achieve the 2.2 value. Users can also set their own values from 1.8
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

10-Bit Gamma Correction

Color Seepage Tonality Breakup

ON-SCREEN IMAGE

Smooth Grayscale Display

provide both precision
and consistency, so
graphics professionals
can be sure that the
final product will look

GAMMA CURVE

exactly the way they
want it to. In fact, each

Brightness

Ideal Gamma Curve

Uncorrected
Gamma Curve

Brightness

Ideal Gamma Curve

= 2.2

256 Tones 256 Tones

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). The CG21 and CG18 are exceptionally versa­tile in this regard, providing color temperature adjustment from
4,000K to 10,000K in 500K increments (including 9,300K). This
wide range ensures that users can achieve the optimum color tem­perature for any type of work, such as “paper white” for DTP.

COLORNAVIGATOR

CALIBRATION SOFTWARE

Both ColorEdge monitors come bundled with EIZO’s own
ColorNavigator calibration software. ColorNavigator is designed to be
used with the
GretagMacbeth Eye­OneTM spectrophoto­meter (sold sepa­rately), making it a
simple matter to adjust
brightness, color tem­perature and gamma
to exactly the desired
values. This degree of
accuracy means that if
the photographer,
designer and printer all
use ColorNavigator,
they are assured of
achieving precise color
matching. In addition,

ColorNavigator adjustment screen and
calibration results.

calibration results can be saved as a
ColorSync profile and used for color man­agement with other peripheral devices.

ColorNavigator was developed by
EIZO to take full advantage of the
hardware capabilities, specifically the
10-bit Look-Up Table, of the CG21 and
CG18. As such, it provides accuracy
and convenience unmatched by other
calibration software.

Note: ColorNavigator is compatible with the Macintosh® OS 9.2.2 and OS X 10.2
or later, and Windows 98SE/Me/2000/XP operating systems.

COLOR AND CLARITY

TO THE HIGHEST STANDARDS

The CG21 employs a Super IPS (In-Plane Switching) panel,
while the CG18 has a Dual-Domain IPS panel. Products of the lat­est LCD technology, these panels offer a 400:1 contrast ratio, high
250 cd/m2 brightness, and a color reproduction range on par with
CRT standards. They also feature wide 170° viewing angles with
barely any color shift when seen from off-center. An EIZO-patented
circuit stabilizes the brightness level after startup, preventing an­noying brightness fluctuations.

0.9

0.8

0.7

0.6

0.5

y

0.4

0.3

0.2

0.1

0.0

0.0

0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8

(xy coordinate)

ColorEdge

CRT Monitorー

x

Brightness (cd/m2)

ColorEdge

Without Brightness
Drift Correction

Preset Value

Minutes

Color reproduction area

ERGONOMIC THIN BEZEL DESIGN

Like all EIZO LCD monitors, these two models are ergonomi­cally designed to provide a number of practical benefits. First is the
considerable space saved on the desktop by the thin bezels on all
four sides. This design also minimizes the distance between screens
in multi-panel arrays. Both monitors have height adjustable stands
(CG18: 100 mm, CG21: 82 mm) and allow 40° tilt and 70° swivel,
so every person can find the optimum viewing position. The panels
also rotate 90° for portrait mode operation and can be removed
from the stand for arm or wall mounting in accordance with VESA
standards.

Note: Specialty software (sold separately) is necessary for viewing in portrait mode.

DIGITAL AND ANALOG SUPPORT

Both monitors accept digital and analog input. The CG21 has
one DVI-I input for direct digital connection and one D-Sub input,
while the CG18 has dual DVI-I inputs to allow the connection of
two computers simultaneously. Priority can be given to one input,
or switching between them can be done manually by pressing a
button on the front bezel.

6-MODE FINE CONTRAST CONTROL

The CG21 and CG18 provide the ability to “fine-tune” the
image for the type of application being used. Six modes (Text, Pic­ture, Movie, Custom, sRGB and Calibration) can be selected via a
handy button on the front bezel. Each mode contains default set­tings for image parameters such as brightness, color temperature,
gamma and saturation.