Adjusting Projection Image Size - ViewSonic PJ678 User Manual

Adjusting Projection Image Size

Refer to the graphic and table below to determine the screen size and projection
distance.
331.33
298.20
280.37
252.34
PROJECTION
DISTANCE (METER)
4:3 SCREEN
Wide
SIZE-
DIAGONAL
Tele
(INCH)
Position the projector in a horizontal position; other positions can cause heat
build-up and damage to the projector.
Make sure the heat ventilation holes are not blocked.
Do not use the projector in a smoky environment. Smoke residue may cause
buildup on critical parts.
ViewSonic
231.93
165.67
196.26
140.19
1.0 1.5 2.0 2.2
33.13 49.70 66.27 72.89 99.40
28.04 42.06 56.07 61.68 84.11
99.40
33.13
84.11
28.04
3.0 4.0 5.0 6.0
132.53 198.80
165.67
112.15 140.19 168.22
18
(Min.)
1.0m
3m
5m
7m
9m
(Max.)
10m
7.0 8.0 9.0 10.0
231.93 265.07 298.20 331.33
196.26 224.30 252.34 280.37
PJ678