Christie CP2000-M User Manual download pdf (Page 89)

3-42 CP2000-SB User Manual

020-100162-04 Rev. 1 (05-2009)

Section 3: Operation

MEASURED (MCGD) NOTES:

For each color, record the native uncorrected x/y color coordinates measured at the screen. These values simply

represent the

currently viewable primary colors, and collectively (when saved) will define the raw color

performance reference point for this projector in the current environment. Each radio button activates the

corresponding full-field YCbCr test pattern of this native color so that measurements can be taken. For

example, to measure the red coordinates, click the

Red radio button to change the screen display to full-field

red, and measure coordinates at the screen. Repeat for each color, and record them in the nearby

x/y text boxes.

After all colors have been measured and recorded, select

Pattern Off to leave the special test pattern mode. To

cancel changes and return to the previous MCGD coordinates, leave the menu without saving.

CREATE MCGD NOTES:

This button collects the current color values entered for Measured (MCGD), where you can save them as a new

OnSite MCGD file or as a different MCGD file with a

different name. Note that a new OnSite overwrites any

previously defined OnSite file, and will be the

default reference point for all future color processing-the old

OnSite file cannot be recovered. By default, the projector will refer to OnSite data to calculate the corrections

needed to achieve a known

target color performance standard in the future. However, if the site requires more

than one set of native MCGD values (such as when an auxiliary lens is swapped in or out), you can create a

new MCGD file with a different file name. Each setup (channel) can then use any desired MCGD file as the

basis for the color corrections needed for a target color. MCGD files are chosen in the

Custom menu.

NOTE: Once created, user-created MCGD files can be deleted only by using Christie's licensed DCP

Librarian software.

Important!

Create MCGD is a permanent over-write of any previous MCGD OnSite file, and will define new

default color processing in the projector.

TARGET (TCGD) and CREATE TCGD NOTES:

Upon opening the Gamut menu, the Target (TCGD) color fields show the corresponding x/y color coordinates

defined for the current target color gamut in use. 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 saving as a new

TCGD file. Note, however, that 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 filename

entirely. Once you have created a new TCGD file, it will appear in the

Custom menu, where it can be selected

for use in the display.

NOTE: 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 Custom menu.

GAIN NOTES:

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.

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