Adjusting Projection Image Size - ViewSonic Pro8520HD User Manual

Adjusting Projection Image Size

Refer to the graphic and table below to determine the screen size and projection distance.
Maximum zoom
Screen size
Diagonal
[inch (cm)]
30 (76)
40 (102)
50 (127)
60 (152)
80 (203)
100 (254)
120 (305)
150 (381)
200 (508)
220 (559)
250 (635)
300 (762)
Note
•
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.
There is 3% tolerance among these numbers due to optical component variations.
It is recommended that if you intend to permanently install the projector, you
should physically test the projection size and distance using the actual projector in
situ before you permanently install it, so as to make allowance for this projector's
optical characteristics. This will help you determine the exact mounting position so
that it best suits your installation location.
Minimum zoom
Vertical offset
Projection distance [inch (m)]
(min. zoom) (max. zoom)
35 (0.89)
48 (1.21)
60 (1.52)
72 (1.83) 111 (2.83)
97 (2.46) 149 (3.79)
122 (3.09) 187 (4.75)
146 (3.72)
183 (4.66) 281 (7.14)
246 (6.24) 376 (9.54)
270 (6.87) 413 (10.5)
307 (7.81) 470 (11.94)
369 (9.38) 564 (14.33)
19
http://www.pureglare.com.au
Screen
Center of lens
Projection distance
16 : 9 Screen
Image height
[inch (cm)]
55 (1.39) 14.7 (37)
74 (1.87) 19.6 (50)
93 (2.35) 24.5 (62)
29.4 (75)
39.2 (100)
49 (125)
224 (5.7) 58.8 (149)
73.5 (187)
98.1 (249)
107.9 (274)
122.6 (311)
147.1 (374)
.
Vertical offset
[inch (cm)]
5.0 (12.8)
6.7 (17.1)
8.4 (21.4)
10.1 (25.6)
13.5 (34.2)
16.8 (42.7)
20.2 (51.3)
25.2 (64.1)
33.6 (85.4)
37.0 (94.0)
42.0 (106.8)
50.5 (128.2)