Christie Mirage M Series User Manual page 82

Section 3: Operation
5. Re-adjust width (both projectors) until the overly bright band at the midpoint of the overlapping blends
disappears or just changes to very light grey. For the shared edge, use the same Blend Width setting on
each projector.
both projectors.
6.
CHECK BLEND
a. Increase Blend Midpoint in both projectors to "lighten" the overall blend, decrease to "darken" the
overall blend.
b. Adjust Blend Shape in both projectors to fine-tune change the amount of mid-grey intensity (as
opposed to black/white) in the blend.
7. Repeat with remaining projectors / overlaps.
8. Check completed display wall with the desired external signal.
9. If necessary, adjust the mechanical alignment to maintain perfect pixel-on-pixel alignment over time.
In applications where you are projecting only white or light images, the Blend Width may be slightly higher—
set according to how much overlap you have between images. Use the following as a guide (examples show
overlapping width only—values for overlapping height will differ).
25%.
COLOR ADJUSTMENTS BY X/Y - S
Enter known x/y coordinates from the chromaticity graph
For defining or changing a User 1, 2, 3, or 4 color
NOTES: 1)
performance or "gamut". Sometimes known as Comprehen-
sive Color Adjustment™.
levels, which ensure a specific color performance from
projector-to-projector, can be calibrated in the Service menu
only. The factory settings can be recovered with selection of
"Reset to Factory Defaults?" in the Color Primary Settings
submenu accessed via the Service menu (password-
protected).
From the factory, the projector can utilize any of the three pre-defined color performance settings identified at
right (default=Max Drives), or colors can be driven on the basis of color temperature. For most applications,
one of these gamuts will produce accurate and realistic colors from a variety of sources. They can be applied at
any time in the Advanced Image Settings menu ("Select Color Adjustment"), and are not adjustable.
DEFINING "USER" COLOR GAMUTS You may find the pre-defined "Select Color Adjustment" options
do not suit your needs. For example, you may require a unique color gamut (range) for a single projector or
application, or you may need to precisely match colors across multiple adjacent displays. In such cases, use the
Color Adjustments by X,Y or Color Saturation submenu to define the precise hue of each primary color
component (red, green, blue, and white) used to generate the millions of colors produced in displays. You can
create up to four custom color gamuts (User 1, 2, 3, or 4) with these adjustments.
The two menus differ only in their user interface, so use whichever menu best suits your needs and
NOTE:
application. A color meter can help with adjustments.
3-44
If the best blend appears to be between two settings, choose the wider setting for
NOTE:
If the blended region appears too dark or light in relation to the rest of the image:
UBMENU
Factory-defined primary color
2)
Recommended overlap is 12.5% -
NOTE:
Mirage M Series User Manual
020-100575-02 Rev. 1 (11-2010)