Christie DS+60 User Manual page 56

Section 3: Operation
3-32 Christie DS+60 User's Manual
— Use this control to adjust true contrast of an image. This is an
OPTICAL APERTURE
optical adjustment where the two apertures in the projector are simultaneously
adjusted; one aperture is located in the illumination system and the other in the
projection lens. Adjust
maximizes brightness. Alternatively, adjust
minimize brightness. By default, the apertures are closed.
NOTES: 1) Powering down the projector does not reset the apertures to their default
position. 2) Adjusting contrast using the
optical one.
— White boost is a source dependent setting that enables you to
WHITE BOOST
recapture some of the lost light from the transition between color wheel segments and
the white segment as it's spinning. For NTSC, HDTV, PAL and SECAM signals the
white boost defaults to "2" and for graphic signals it's "10". When set to zero, white
boost is off. As you increase the white boost setting you will notice that the image
becomes increasingly brighter and a little less saturated.
NOTES: 1) White Boost is automatically disabled (grayed out in menu) when you
enable Brightness Uniformity, Edge Blending or select a color adjustment (Select
Color Adjustment) other than "Max Drives". 2) White Boost can also be adjusted
specifically for internal test patterns. However, once you switch back to a source, the
White Boost settings will reset to the value set for that source.
— Set the interval of delay desired between the input signal and its
FRAME DELAY
appearance on screen. For applications such as simulation, where the feeling of "real
time" image response is a priority, a minimum setting is usually preferable. For
projectors capable of 3D (stereographic) applications where alternating left-right
frames must be synchronized with the corresponding L/R shutters in 3D glasses, a
frame delay setting of two (or multiple of two) may be more useful. Delay may vary
between sources.
NOTE: If frame delay is set too low it can cause frame tears.
This control is most useful for smoothing out moving images from
MOTION FILTER —
interlaced sources. In most cases the proper Motion Filter setting is automatically
determined according to the type of incoming source signal. However, if your source
is jittery and/or tearing you may wish to "force" a setting to ensure stable processing
for this source—if desired, override the default "Auto" setting by selecting the
appropriate motion filter:
1. The projector will automatically use the correct motion filter according
AUTO:
to the incoming signal.
2. For static images with no motion, such as graphics from a CD.
STILL:
3. For video images that did not originate from film, or for moving
MOTION:
computer-generated images.
4. For video images that originated from film. This will optimize image
FILM:
quality and stability.
FILM MODE THRESHOLD —
detect if an incoming video signal originated from film or not.
to close the apertures, which minimizes contrast and
to maximize true contrast and
Contrast
key is an electronic adjustment, not an
This setting determines how sensitively the projector can