Acer X1220H Series User Manual page 26

The table below shows how to achieve a desired image size by adjusting either the
position or the zoom ring. Example: To obtain an image size of 50" set the projector
at a distance between 2 m and 2.2 m from the screen and adjust the zoom level
accordingly.
Desired image size
Diagonal (inches) W (cm) x H (cm)
<A>
30
40
50
60
70
80
90
100
120
150
180
200
250
300
Zoom Ratio: 1.1x
Distance (m)
Max zoom
<B>
61 x 46 1.2
81 x 61 1.6
102 x 76 2.0
122 x 91 2.4
142 x 107 2.8
163 x 122 3.2
183 x 137 3.6
203 x 152 4.0
244 x 183 4.8
305 x 229 6.0
366 x 274 7.2
406 x 305 8.0
508 x 381 10.0
610 x 457 12.0
Top (cm)
Min zoom From base to top of
<C> image <D>
1.3 59
1.8 79
2.2 99
2.6 119
3.1 139
3.5 158
4.0 178
4.4 198
5.3 238
6.6 297
7.9 357
8.8 396
11.0 495
594
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