Vertical And Horizontal Lens Shift; Vertical Lens Shift (Example Only) - Runco RS 440LT/CineWide User Manual

If it is not possible to align the projector and screen as shown in Figure 3-3, you can use
the lens shift controls 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 and Figure 3-5.
approx. 4" (depending
on the amount of lens shift)
Note: This is a general example of lens shift. Lenses vary in their shift capabilities. No particular
lens or projector is shown in this example.
Figure 3-4. Vertical Lens Shift (Example only)
Runco RS-440 Installation/Operation Manual
Base plate
to lens center =
Screen Center
0%
50% Height
Lens Shift
(0.5 x H)
100% Height
Lens Shift
(1.0 x H)
150% Height
Lens Shift
(1.5 x H)
17
Installation
Vertical and Horizontal
Lens Shift