Mirage 2000 User Manual page 68

video, HDTV and computer graphics. "Default" is the only gamma setting
available when using the Adjust Primary Colors (CDS) feature—see 3.11, Using
Multiple Projectors.
ENHANCED –
This setting elevates middle gray levels compared to "Default", and
provides a more gradual rolled-off transition to maximum white. Together, these
differences can improve the appearance of many kinds of images.
HIGH AMBIENT –
This setting elevates low gray levels compared to the "Default"
and "Enhanced" settings. In high ambient light conditions, details can be seen in
the dark parts of an image that would otherwise be difficult to perceive.
PAL/SECAM –
This setting results in a darker image with higher contrast. The
gamma curve more closely matches the official standard for PAL and SECAM
video signals.
LINEAR –
This setting is a straight, linear transition from black to white. For
normal source signals, it results in a picture of low contrast with highly elevated
low- and mid- level grays. It should be used only with sources that have their
own pre-applied gamma control.
COLOR TEMPERATURE SETUP —
apply, alter, add, or copy a color temperature, or if you want to use an unaltered
factory default color temperature.. This menu is duplicated in other locations.
By default, the projector can utilize any of four calibrated factory-set color
temperatures: 3200, 5400, 6500 or 9300 (expressed in degrees Kelvin). For most
applications, these temperatures will display accurate and realistic colors from a
variety of sources. They can be selected at any time from the "Select Color Temp"
list in the Color Setup submenu.
However, if you require extra color temperatures, you can also add up to five custom
color temperatures—four "User" and one "Interpolated Color"—by defining them
within the Color Temperature Setup menu (each defaults to 6500K until then). Any
"User" or "Interpolated Color" temperature created here is immediately applied, or it
can be selected at any time from the Color Setup menu as usual, regardless of your
source or channel. Use of the Color Temperature Setup menu is described below.
NOTE: For best results, use an internal grayscale test pattern when working with
color temperature.
Figure 3.18. Color Temperature Setup Menu
Use the Color Temperature Setup submenu to
Mirage 2000/4000/6000 User's Manual
OPERATION
3-31