Admin: Tcgd Menu - Christie CP2000-ZX User Manual

Section 3: Operation

Admin: TCGD Menu

The Admin: TCGD menu allows you to 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.
Save setting to a new target
file.
Record x/y coordinates for
each color.
Select radio button to display
that particular color.
Luminance of each color.
Table 3.21 Summary of Admin: TCGD Menu Options
ADMIN: TCGD MENU OPTIONS
TCGD
Gain
White Tolerance
Restore
TCGD NOTES
You can create a new custom target by defining different coordinates for one or more TCGD colors or simply
by changing the tolerance state and this 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 you have created a new TCGD file, 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 that displayed colors actually do match the
standard—i.e., you can measure each color at the screen and compare its coordinates to those appearing in the
TCGD fields to confirm that the projected colors are accurate. For special applications in which you want 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.
3-44
Figure 3-37 Admin: TCGD Menu Options
The Target (TCGD) color fields show the corresponding x/y color coordinates defined for the current
target color gamut in use. See TCGD Notes below.
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 theatre use.
The chosen target for white coordinates (White XY) under Target (TCGD) may be relaxed 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. See White Tolerance Notes
below.
Restore returns the gamut menu settings that were present when you opened the menu, assuming Save
was not selected. To restore a TCGD file, click Restore button any time before saving.
Enable /disable toler-
ance (a tolerance dis-
cards less light).
Save/create setting.
Cancel unsaved screen
settings and display pre-
vious saved settings.
Preview settings in dis-
play without saving.
Define x/y coordinates
for 4 corners.
CP2000-ZX User Manual
020-100006-05 Rev. 1 (05-2009)