Christie CP2000-X, User Manual

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CINEMA OPERATION
CP2000-X User Manual
4-3
020-100031-01 Rev . 1 (03-2009)
Projector Variables: Electronic and Anamorphic Resizing
Because the native resolution/format of this projector closely matches the flat aspect
ratio (the native resolution being only slightly wider, at 1.89), the projector can
essentially show incoming “flat” images through its standard zoom lens. “Scope”
source material, however, is typically “squeezed” electronically—that is, it is
distorted into a narrow image (characterized by unusually thin people!). Display
pixels are then stretched horizontally through the auxiliary lens so that the full 2.39
image width appears on screen. The image becomes wider but not taller. See Figure 4.3.
Figure 4.3. Typical Method for Achieving “Scope”
If the incoming material is not “pre-squeezed” by the distributor, you can squeeze it
on-site by using a source file in which the combined settings for 1) incoming source
resolution and 2) desired aspect ratio define the necessary compression. The
incoming material will then be squeezed into a narrower area on the projector’s DMD
panels, with the final aspect ratio setting determining the actual degree of
compression. See
3.5, Using the Touch Panel Controller for more information about
choosing Source menu settings.
Theatre Variables: Masking
In order to present either type of
feature on a single screen, a theatre
typically uses
masking to conceal
any unused edge(s) of the screen.
These movable panels or curtains
are most commonly installed along
the top edge of the screen, changing
the height of the screen but not its
width. The screen shown in Figure
4.4 at right also has a bottom mask.

Add masks for “scope”

Open masks for “flat”
Figure 4.4. Top Masking for Scope