ViewSonic PRO8500 - Adjusting Projection Image Size

ViewSonic Pro8500 24
Adjusting Projection Image Size
Refer to the graphic and table below to determine the screen size and projection distance.
Screen size
Diagonal
[inch (cm)]
4 : 3 Screen
Projection distance [inch (m)] Image
height [inch
(cm)]
Vertical
offset
[inch (cm)]
(min. zoom) (max. zoom)
30 (76) 33 (0.85) 52 (1.32) 18 (46) 2.7 (6.9)
40 (102) 45 (1.14) 70 (1.78) 24 (61) 3.6 (9.2)
50 (127) 57 (1.44) 88 (2.23) 30 (76) 4.5 (11.5)
60 (152) 69 (1.74) 106 (2.69) 36 (91) 5.4 (13.8)
80 (203) 92 (2.34) 142 (3.60) 48 (122) 7.2 (18.4)
100 (254) 116 (2.94) 178 (4.51) 60 (152) 9.1 (23.0)
120 (305) 139 (3.54) 214 (5.43) 72 (183) 10.9 (27.6)
150 (381) 175 (4.44) 268 (6.80) 90 (229) 13.6 (34.5)
200 (508) 234 (5.93) 357 (9.08) 120 (305) 18.1 (46.0)
220 (559) 257 (6.53) 393 (9.99) 132 (335) 19.9 (50.6)
250 (635) 292 (7.43) 447 (11.36) 150 (381) 22.6 (57.5)
300 (762) 351 (8.93) 537 (13.64) 180 (457) 27.2 (69.0)
Maximum zoom
Minimum zoom
Projection distance
Center of lens
Screen
Vertical offset
 Position the projector in a horizontal position; other positions can cause heat
build-up and damage to the projector.
 Keep a space of 30 cm or more between the sides of the projector.
 Do not use the projector in a smoky environment. Smoke residue may build-
up on critical parts and damage the projector or its performance
.
 Consult with your dealer for special installation such as suspending from a
ceiling.