Christie roadie 25k User Manual page 89

OPERATION
Figure 3.15. Adjusting Input Levels Using the Peak Detector
(RED EXAMPLE SHOWN)
Advanced Image Settings
— SUBMENU
GAMMA TABLE:
This control selects
and applies the normal 2.2 gamma
setting or a user-defined "arbitrary"
(custom) gamma table that has been
previously downloaded to projector
memory (these custom gamma
tables—a.k.a. curves—are typically
created in Christie's Arbitrary
Gamma application for the PC, and
are downloaded via a separate
utility). Use of custom curves can
improve performance for certain
kinds of source input and
applications. Generally the best
gamma curve is one that produces
maximum contrast, brightness and color performance for the current signal and
ambient lighting conditions.
NOTE: If no such curves have been defined and downloaded to projector memory,
only the "2.2, Normal" default gamma curve is available here—adjust as desired in
the main Image Settings menu.
SELECT COLOR ADJUSTMENT:
In "Select Color
Adjustment", choose an overall color performance for all
images. The "Max Drives" factory default simply drives all 3
colors at their maximum level so that they are fully on and
cannot be changed. The two other pre-defined color
adjustment choices—SD Video and HD Video—apply a color
gamut optimized for video sources (standard or high-
definition). Alternatively, you can specify a color
temperature, which enables the nearby Color Temperature
slidebar and applies its current setting (default = 6500K). If none of the pre-defined
"Select Color Adjustment" options or color temperatures suit your application, select
one of four color gamuts previously defined by a user (User 1, 2, 3, 4). A "User"
option applies a customized color performance in which the user has precisely set the
hue and intensity of each color component in the Color Adjustment by X/Y or Color
Saturation submenus, and is most often needed with multiple-projector applications.
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Roadie 25K User's Manual