Acer P1223 User Manual page 24

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.
Diagonal (inches)
Zoom Ratio: 1.1x
Downloaded From projector-manual.com Acer Manuals
Desired image size
W (cm) x H (cm)
<A>
30 61 x 46
40 81 x 61
50 102 x 76
60 122 x 91
70 142 x 107
80 163 x 122
90 183 x 137
100 203 x 152
120 244 x 183
150 305 x 229
180 366 x 274
200 406 x 305
250 508 x 381
300 610 x 457
Distance (m)
Max zoom Min zoom
<B> <C>
1.2 1.3
1.6 1.8
2.0 2.2
2.4 2.6
2.8 3.1
3.2 3.5
3.6 4.0
4.0 4.4
4.8 5.3
6.0 6.6
7.2 7.9
8.0 8.8
10.0 11.0
12.0
15
Top (cm)
From base to top of
image <D>
59
79
99
119
139
158
178
198
238
297
357
396
495
594