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8
Setting up the Projector
The following tables give the lens shift values for desktop and
ceiling-mounted setups for various image sizes. The lower lens
shift position represents the highest the projector can be above
the bottom of the screen; the upper lens shift position represents
the lowest the projector can be below the bottom of the screen.
When the projector is ceiling mounted, use the upper edge of the
screen as the base line.
Table 2:
Lens Shift Positions for Desktop Setup
Diagonal
Image Size
(inches)
Distance from lens center to
lower edge of screen (H)
Lower lens
shift position
(inches)
Upper lens
shift position
(inches)
300 -89.7 46.6
240 -71.7 37.2
180 -53.8 27.9
144 -43.0 22.3
120 -35.9 18.6
96 -28.7 14.9
72 -21.5 11.2
60 -17.9 9.3
48 -14.3 7.4
Table 3:
Lens Shift Positions for Ceiling-Mounted Setup
Diagonal
Image Size
(inches)
Distance from lens center to
upper edge of screen (H)
Lower lens
shift position
(inches)
Upper lens
shift position
(inches)
300 89.7 -46.6
240 71.7 -37.2
180 53.8 -27.9
144 43.0 -22.3
120 35.9 -18.6
96 28.7 -14.9
72 21.5 -11.2
60 17.9 -9.3
48 14.3 -7.4