Vertical and horizontal lens shift, Figure 3-4 . vertical lens shift (example only), Figure 3-5 . horizontal lens shift (example only) – Planar PD7170 User Manual
Page 33: Prel imina ry
Planar PD7170 Installation/Operation Manual
19
PREL
IMINA
RY
Vertical and Horizontal
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 and Figure 3-5.
Figure 3-4. Vertical Lens Shift (Example Only)
Figure 3-5. Horizontal Lens Shift (Example Only)
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.
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.