Runco VX-6000D manual Vertical and Horizontal, Position

Installation

Vertical and Horizontal	➤	Proper placement of the projector relative to the screen will yield a rectangular,
Position		perfectly-centered image that completely fills the screen.
		Ideally, the projector should be positioned perpendicular to the screen and in such a way
		that the lens center and screen center are aligned with each other, as shown in Figure 3-3.

Ceiling Installation

Ceiling

Height

Projection Distance

Lens Center

x

		Screen	Lens Center
	Floor Installation
	Height	Screen	Lens Center
	Lens Center
	x
		Projection Distance
			Floor
	Figure 3-3. Projector Placement
Vertical and Horizontal ➤	If it is not possible to align the projector and screen as shown in Figure 3-3,you can use
Lens Shift	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 3-4and Figure 3-5.
			Screen Center
			0%
			50% Height
			Lens Shift
			(0.5 x H)

Base plate

to lens center =

approx. 5-6" (depending

on the amount of lens shift)

100% Height

Lens Shift

(1.0 x H)

150% Height

Lens Shift

(1.5 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)

24 Runco VX-6000d Owner’s Operating Manual