Folded Optics - Runco Signature Cinema SC-30d Installation & Operation Manual

Installation

Folded Optics

Table 3-4 lists the lens shift limits for each available SC-30d/SC-35d lens, as percentages
and absolute measurements with a 108 x 60.75 inch (1.78:1) screen.
Table 3-4. SC-30d/SC-35d Vertical and Horizontal Lens Shift Limits
Telesto A
Lens Shift Limits, as Percentages of Screen Height or Width (Note 1)
Up
Vertical
(Note 2)
Down
(Note 3)
Left
Horizontal
(Note 1)
Right
Lens Shift Limits in Inches, with a 108-by-60.75 inch (1.78:1) Screen
Up
Vertical
Down
(Note 3)
Left
Horizontal
Right
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 apply to ceiling mount configurations. For floor installations
(where the projector is upright), reverse the up/down vertical offset percentages.
3. Lens shift is not possible in any direction with the Telesto A lens. The vertical position is fixed at
50% down.
In rear-screen applications where space behind the projector is limited, a mirror may be
used to fold the optical path, as shown in Figure 3-5. The position of the projector and
mirror must be accurately set. If you are considering this type of installation, contact your
dealer for assistance.
Screen
Figure 3-5. Folded Optics
Telesto B Telesto C
Mirror
26 Runco SC-30d/SC-35d Installation/Operation Manual
Telesto D Telesto E
0%
50% - 100%
44%
44%
0.00
30.38 - 60.75
47.52
47.52