Admin/Gamut Submenu; Letterbox Vs. Non-Letterbox - Christie CP2000 User Manual

LIT MAN USR CP2000
020-100032-04 Rev. 1 (03/14)
and- right—will be discarded. NOTE: Keep Letterbox checked for all cinema
presentations.
Figure 3.13. Letterbox vs. Non-letterbox

Admin/Gamut Submenu

The primary function of the color Gamut menu is to ensure that the projector can
achieve any specific known and pre-defined industry color performance standard—
called a target color—within its current environment, and within a desired tolerance.
In this menu you can record measurements for currently projected "uncorrected"
colors, modify or create custom Target Color Gamut Data (TCGD) files for new
color gamut performance, and set how closely you want to match the target white.
Recording the projector's uncorrected color performance is typically completed as a
final step—like a calibration—after installation. For this one-time procedure, the
installer measures initial "native" (i.e., uncorrected) colors at the screen, enters the
data as Measured Color Gamut Data on the left side of the Gamut menu, and
typically saves an MCGD file called "OnSite". By default, the projector will use this
MCGD to calculate—and implement—precise processing modifications needed to
achieve any target color gamut on screen, essentially compensating for the type of
port window, screen, lens, light output, ambient light and other current environmental
factors influencing on-screen colors. These various industry standards for color
performance (TCGDs) will then be consistently achieved from source-to-source and
from site-to-site. If the environment degrades or changes (such as if an anamorphic
lens is swapped on and off), or if an internal optical module is replaced, create one or
more new MCGDs, naming them as desired. To use an MCGD file as the reference
file for target color processing (such as with a certain source and/or lens), select it in
the Custom menu.
BASIC OPERATION
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