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Runco VX-40d/-50d/-60d/-80d Owner’s Operating Manual 23
PRE
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Figure 3-4. Horizontal Lens Shift
Vertical Lens Shift – VX-40d/VX-50d: The VX-40d/-50d zoom lenses (Telesto B, C, D
and E) provide up to 65% of vertical lens shift up or down. For example, with a 96 x
54-inch (16:9) screen, you can shift the image up to 35.10 inches (89.15
cm) above or
below the screen center. (Vertical lens shift is not possible with the Telesto A lens.)
Vertical Lens Shift – VX-60d/VX-80d: The VX-60d/-80d zoom lenses (Telesto B, C, D
and E) provide up to 50% of vertical lens shift up or down. For example, with a 96 x
54-inch (16:9) screen, you can shift the image up to 27.00 inches (68.58
cm) above or
below the screen center. (Vertical lens shift is not possible with the Telesto A lens.)
Horizontal Lens Shift: The VX-40d/-50d/-60d/-80d zoom lenses (Telesto B, C, D and E)
allow up to 25% 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 24.00 inches (60.96 cm) left or
right of the screen center. (Horizontal lens shift is not possible with the Telesto A lens.)
1. With no vertical or horizontal lens shift, the lens center and
screen center are aligned with each other.
2. Vertical shift limits are percentages of the screen height.
Horizontal shift limits are percentages of the screen width.
0%
Screen Center
100% Width Lens Shift
(1.0 x W)
50% Width Lens Shift
(0.5 x W)
150% Width Lens Shift
(1.5 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.
Note