ViewSonic Pro9000 User Manual page 20

Screen size
Desired
Distance
Diagonal
(m)
(inch)
<A>
<B>
1.5 38
1.8 45
2 50
2.3 58
2.5 63
2.8 70
3 75
3.2 80
3.5 88
3.8 95
4 100
4.2 105
4.5 113
4.8 120
5 125
Zoom Ratio: 1.2x
How to get a preferred screen size by adjusting distance and zoom
The table below shows how to achieve a desired screen size by adjusting either
Distance v.s Screen size table
Top
(Min zoom)
From base to
W (cm) x H top of image
(cm) (cm)
<C>
83 X 47 54
100 X 56 65
111 X 63 73
128 X 72 83
138 X 78 91
155 X 88 102
167 X 94 109
178 X 100 116
194 X 109 127
211 X 119 138
222 X 125 145
233 X 131 152
250 X 140 163
267 X 150 174
278 X 156 181
A
B
2.0 m
Desired Distance
2.4 m
C
19
Screen size
(Max zoom)
Diagonal
(inch) W (cm) x H
<B> (cm)
45 100 X 56
54 120 X 68
60 133 X 75
69 153 X 86
75. 167 X 94
84 187 X 105
90 200 X 113
96 213 X 120
105 233 X 131
114 253 X 143
120 267 X 150
126 280 X 158
136 300 X 169
145 320 X 180
151 333 X 188
60"
Desired image size
D
Height
For base to
top of image
Top
From base to
top of image
(cm)
<C>
65
78
87
100
109
122
131
139
152
165
174
183
196
209
218