Summary Of Admin: Tcgd Menu Options - Christie CP2000-M User Manual

Summary of Admin: TCGD Menu Options

• TCGD and Save TCGD Notes
The "Target (TCGD)" color fields show the corresponding XY color coordinates defined for the current target
color gamut in use. Create a new custom target by defining different coordinates for one or more TCGD colors
(or simply by changing the tolerance state) and saving as a new TCGD file. NOTE: Industry-defined TCGD
standards, such as P7v2 and others, are write-protected and cannot be changed—modifications to such a
target must be saved under a new TCGD file name entirely. Once a new TCGD file is created, it appears in the
Channel:Page 2 menu, where it can be selected for use in the display.
For most applications, TCGD values are used simply to verify displayed colors that actually do match the
standard—i.e., each color can be measured at the screen and compare its coordinates to those appearing in the
TCGD fields to confirm the projected colors are accurate. For special applications to create a unique target
color standard, enter new TCGD coordinates as desired and then save as a new TCGD file. Apply as usual
from the Channel: Page 2 menu.
• Gain: Gain indicates the luminance (a.k.a. brightness or intensity) of each color as compared to full-on
white, ranging from 0 (0%) to 2 (100%). You may want to modify one or more gain values to precisely
match color levels in other adjacent displays or to accommodate a studio's internal color management 
technique. Gain would rarely, if ever, be adjusted for theater use.
• White Tolerance: The chosen target for white (White XY) coordinates under Target (TCGD) may be
relaxed, if desired, by establishing a small "tolerance box" around it. This box represents four coordinates (0-
1-2-3) plotted on a 1931CIE Chromaticity graph and may vary from TCGD to TCGD. If desired, define new
tolerance coordinates for the current TCGD to increase or decrease this tolerance area, or to change its shape
or location—larger boxes relax the tolerance, reducing the loss of light caused by precise matching. Clear the
checkbox if the projector's whites must precisely match the target white point (typical for telecine use)
defined for the current TCGD. If this match can be anywhere within the tolerance box (typical for theater
use), enter a checkmark. The checkbox status is saved with the TCGD. Keep in mind that some light is
usually discarded for an exact match, resulting in a dimmer image—it is recommended the tolerance box is
enabled for all applications requiring maximum brightness, such as in theatres. DO NOT enable the
tolerance box if exact color performance is more crucial than overall image brightness, such as in telecine
applications.
• Restore: This button enables users to return to the gamut menu settings that were present when the menu
was initially opened. To restore a TCGD FILE: Press the Restore button any time before saving.
CP2000-M/MR User Manual
020-100123-07 Rev. 1 (12-2009)
Section 3: Operation
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