Runco D-73D operation manual Vertical and Horizontal Lens Shift Ranges, Lens Configuration

Installation

Table 3-4lists the usable lens shift ranges for each available D-73d lens, as percentages and absolute measurements with a 96 x 54 inch (1.78:1) screen.

Table 3-4. Vertical and Horizontal Lens Shift Ranges

			Lens Configuration
			Standard or Short-Throw	Standard Primary,
			Primary, with or without	with Whitney Anamorphic
			Shasta Anamorphic Lens	Lens
Lens Shift Limits, as Percentages of Screen Height or Width (Note 1)
Vertical		Up	25%	(none)
(Note 2)
		Down	60%	50% - 60%
Horizontal		Left	12.5%	(none)
		Right	12.5%	(none)
	Lens Shift Limits in Inches, with a 96-by-54 inch (1.78:1) Screen
Vertical		Up	13.50	(none)
		Down	32.40	27.00 - 32.40
Horizontal		Left	12.00	(none)
		Right	12.00	(none)
Notes:

1. Vertical shift limits are percentages of the screen height. Horizontal shift limits are percentages of the screen width.

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.

Folded Optics ➤ In rear screen applications where space behind the projector is limited, one or mirrors may be used to fold the optical path, as shown in Figure 3-5.The position of the projector and mirror(s) must be accurately set.

Screen

Mirror

Figure 3-5. Folded Optics

28 D-73d Series Installation/Operation Manual