INSTALLATION AND SETUP
2-8
Roadie 25K User’s Manual
electronically—that is, it is distorted into a narrower area (characterized by unusually
thin people) so that its pixels can then be stretched horizontally through the
anamorphic lens to regain the full and properly proportioned 2.39 display. This
optical widening can stretch the image by approximately 25%. See Figure 2.7.
Figure 2.7. Typical Method for Achieving “Scope”
Masking Options
In order to conveniently present
different types of incoming data—
for example, flat vs. scope—on a
single screen, you can use physical
masking to cover the unused
edge(s) of the screen. These
movable panels are most commonly
installed along the top edge of the
screen, changing the height of the
screen but not its width, and are
most frequently used in permanent
installations such as theatres. The
screen shown in Figure 2.8 at right
also has a bottom mask.
•
Add masks for “scope” displays
•
Remove masks for “flat” displays
Alternatively, masks may be installed at each
side of the screen in order to change the width
of the screen but not its height.
•
Add masks for “flat” displays
•
Remove masks for “scope” displays
In some cases, the room will have both side
and top/bottom masking installed. This
arrangement is the most flexible of all.
Refer to Figure 2.10 for a summary of the basic factors affecting wide displays in a
variety of rooms.
Figure 2.8. Top Masking for Scope Images
Figure 2.9. Side Masking for Flat
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