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SELECT COLOR TEMP —
preset color temperature (3200K, 5400K, 6500K or 9300K) or
any previously "User" defined color temperature. Color
temperatures are measured in degrees Kelvin and represent the
"coloration" (reddish or bluish) of the whites displayed by the
projector—the lower the temperature, the more reddish the
whites; the higher the temperature, the more bluish the whites.
NOTE: The custom temperatures "User" or "Interpolated
Color" can be defined in the Color Temperature Setup menu.
Until defined, these custom choices all default to 6500K. See 3.7, Configuring
System Parameters.
INTERPOLATED COLOR —
that lies somewhere between one preset color temperature and another. Adjust the
slidebar to define a new temperature which will be interpolated from the neighboring
presets (for example, 7841 is interpolated from 6500 and 9300). This slidebar is
disabled unless you have a source connected and have selected "Interpolated Color"
in the "Select Color Temp" pull-down list.
GAMMA —
NOTE: Gamma does not normally require adjustment and is intended for
experienced users only.
The "Gamma" option affects the shape of the curve determining
what gray shades are available for a given amount of signal
input between minimum (black) and maximum (white).
Different curves can improve performance for certain kinds of
source input and applications. Generally the best gamma curve
is one that produces maximum contrast, brightness and color
performance for the current signal and ambient lighting
conditions.
DEFAULT (default) –
under optimum viewing conditions for virtually all types of images, including
video, HDTV and computer graphics. "Default" is the only gamma setting
available when using the Adjust Primary Colors (CDS) feature—see 3.10, 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.
"Select Color Temp" applies either a
Use this option if you need a specific color temperature
This setting provides good black levels and high contrast
OPERATION
DLV1280 DX User's Manual
3-29
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