Christie M Series User Manual page 63

Section 3: Operation
• FULL WIDTH fills the projector's display from left-to-
right without changing the original aspect ratio of the
image. Depending on the source, data at the top and
bottom may be discarded (cropped), or the display may
have black borders at the top and bottom (called
"letterboxed").
• FULL HEIGHT fills the display from top-to-bottom. Depending on the source, this may create borders.
• ANAMORPHIC displays an anamorphic image in its native 16:9 aspect ratio.
The image will fill the screen from side-to-side and be centered between black
bars at top and bottom.
SIZE
Controls both the image width and height in tandem, maintaining the current
aspect ratio of the displayed signal data.
VERTICAL STRETCH
Adjusts the height of the image while keeping the width constant. Use "Vertical Stretch" to change the aspect
ratio of the display.
PIXEL TRACK
Steady flickering or several soft vertical stripes or bands across the entire image indicates poor pixel tracking.
Proper pixel tracking ensures that the image quality is consistent across the screen, the aspect ratio is
maintained, and that the pixel phase can be optimized (described below). Tracking determines the frequency of
the pixel-sampling clock, indicated by the number of incoming pixels per line, so that all pixels generated by a
particular source are sampled.
By default, the projector samples at the correct frequency for most sources.
NOTE:
For best results, use a test pattern such as a smooth gray consisting of a clear pattern of black and white
pixels, or a similar "half on, half off" graphic image, such as the Windows 2000 shutdown screen. Adjust the
slide bar until the vertical stripes broaden to the point where one large stripe fills the image. If the image still
exhibits some shimmer or noise, adjust Pixel Phase (below).
3-20
F 3-23 F H
IGURE ULL EIGHT
F 3-22 F W
IGURE ULL IDTH
F 3-24 A
IGURE
M Series User Manual
020-100009-04 Rev. 1 (10-2009)
NAMORPHIC