Acer X1278H Series User Manual page 24

14
•
WXGA series
The table below shows how to achieve a desired image size by adjusting either
the position or the zoom ring.
To obtain an image size of 60" set the projector at a distance 1.9 m and 2.3 m
from the screen.
Desired Image Size
Diagonal (inch)
W (cm) x H (cm)
<A>
30
40
50
60
70
80
90
100
120
150
180
200
250
300
Zoom Ratio: 1.2x
1.9 m
B
2.3 m
Desired Distance
C
Distance (m)
Max zoom
<B>
65 x 40 1.0
86 x 54 1.3
108 x 67 1.6
129 x 81 1.9
151 x 94 2.2
172 x 108 2.6
194 x 121 2.9
215 x 135 3.2
258 x 162 3.9
323 x 202 4.8
388 x 242 5.8
431 x 269 6.4
538 x 337 8.0
646 x 404 9.6
A
60"
Desired
image size
Height: 101 cm
from base to top
of image
From base to top of
Min zoom
<C>
1.2
1.5
1.9
2.3
2.7
3.1
3.5
3.9
4.6
5.8
6.9
7.7
9.6
D
Top (cm)
image
<D>
50
67
84
101
118
135
151
168
202
252
303
337
421
505