Planar PD7170 operation manual Lens Shift, Width, as shown in -4 and Figure

	Installation
You can use the lens shift controls on the projector to center the image on the	Vertical and Horizontal
screen. Lens shift is generally expressed as a percentage of the screen height or	Lens Shift
width, as shown in Figure 3-4and Figure 3-5.

Screen Center

0%

50% Height

Lens Shift

(0.5 x H)

100% Height

Lens Shift

(1.0 x H)

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.

Figure 3-4. Vertical Lens Shift (Example Only)

100% Width Lens Shift

(1.0 x W)

50% Width Lens Shift

(0.5 x W)

Screen Center

0%

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.

Figure 3-5. Horizontal Lens Shift (Example Only)

Planar PD7170 Installation/Operation Manual 19