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Runco VX-8d Installation/Operation Manual 21
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Figure 3-4. Horizontal Lens Shift (EXAMPLE ONLY)
Vertical Lens Shift: The VX-8d zoom lenses (Proteus 2 through 6) provide up to 65% of
vertical lens shift in either direction (up or down). For example, with a 96 x 54-inch (16:9)
screen, you can shift the image up to 35.10 inches (0.89
meters) below the screen center.
(Vertical lens shift is not possible with the Proteus 1 lens.)
Horizontal Lens Shift: The VX-8d zoom lenses (Proteus 2 through 6) allow up to 30% of
horizontal lens shift in either direction (left or right). For example, with a 96
x 54-inch (16:9)
screen, you can shift the image up to 28.80 inches (73.15 cm) left or right of the screen
center. (Horizontal lens shift is not possible with the Proteus 1 lens.)
0%
Screen Center
100% Width Lens Shift
(1.0 x W)
50% Width Lens Shift
(0.5 x W)
Screen Width (W)
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.