Runco LIGHTSTYLE LS-HB, Installation & Operation Manual, Page: 35 / 112

Installation
Runco LS-HB/LS-HB Ultra Installation/Operation Manual 19
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Figure 3-3. Projector Placement
Lens Shift You can use the lens shift controls on the projector to center the image on the screen.
Lens shift is generally expressed as a percentage of the screen height or width, as shown
in Figure 3-4.
Figure 3-4. Vertical Len s S hift (Example Only)
Vertical Len s S hift — L S -HB: The L S -HB provide s up to 25% of upward vertical
len s s hift and up to 60% of downward vertical len s s hift. For example, with a 100 x
56 inch (1.78:1) screen, you can shift the image up to 14.00 inches (0.36 meters) above or
33.60 inches (0.85 meters) below the screen center.
Screen
Height
Projection Distance
Ceiling
x
Lens Center Lens Center
Ceiling Installation
Screen
Height
Floor
Lens Center
Projection Distance
Floor Installation
Lens Center
x
50% Height
Lens Shift
(0.5 x H)
100% Height
Lens Shift
(1.0 x H)
Screen Center
0%
Note: This is a general example of lens shift. Lenses vary in their shift capabilities. No particular
lens or projector is used in this example.