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18 Vidikron Vision Model 65/Model 75 Installation/Operation Manual
Vertical Lens Shift You can use the lens shift (LENS) controls on the projector remote to center the image on the
screen. Vertical lens shift is generally expressed as a percentage of the screen height, as
shown in
Figure 3-3.
Figure 3-3. Vertical Lens Shift (Example Only)
The Vision 65/75 provides up to 35% of vertical lens shift above and up to 50% of
vertical lens shift below the screen center. For example, with a 100 x 56-inch (16:9) screen,
you can shift the image up to 19.60 inches (0.50
meters) above or 28.00 inches (0.71 meters)
below the screen center.
➤
1. With no vertical lens shift, the lens center and screen center are aligned
with each other.
2. Vertical lens shift figures are for ceiling mount configurations.
For floor installations (where the projector is upright), reverse the
up/down vertical lens shift percentages.
Base plate
to lens center =
approx. 5-6" (depending
on the amount of lens shift)
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.
Note