Acer H7550ST Series User Manual page 25

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H7550BD/E155D/HE-815J/H1P1406/H7550BDz
To obtain an image size of 70" set the projector at a distance between 1.8 m
and 2.3 m from the screen and adjust the zoom level accordingly.
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: 1.3 x
1.8 m
2.3 m
Desired distance
Distance (m)
Max zoom
< B >
66 x 37
89 x 50 1.0
111 x 62 1.3
133 x 75 1.5
155 x 87 1.8
177 x 100 2.0
199 x 112 2.3
221 x 125 2.5
266 x 149 3.1
332 x 187 3.8
398 x 224 4.6
443 x 249 5.1
553 x 311 6.4
664 x 374 7.6
70"
Desired
image size
Height:
112 cm
From base
to top of
image
Top (cm)
Min zoom From base to top of
< C > image < D >
1.0
1.3
1.6
2.0
2.3
2.6
3.0
3.3
4.0
4.9
5.9
6.6
8.2
15
48
64
80
96
112
128
144
160
192
240
288
320
400
480