How To Get A Preferred Image Size By Adjusting Distance And Zoom - Acer X1278H Series User Manual

How to get a preferred image size by adjusting
distance and zoom
•
XGA 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 2.4 m and 2.6 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: 1.1x
2.4 m
Desired Distance
2.6 m
C
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 5.9
366 x 274 7.1
406 x 305 7.9
508 x 381 9.9
610 x 457 11.9
A
60"
Desired
image size
B
From base to top of
Min zoom
<C>
1.3
1.7
2.2
2.6
3.0
3.5
3.9
4.3
5.2
6.5
7.8
8.7
10.9
13
D
Height: 119 cm
from base to top
of image
Top (cm)
image
<D>
59
79
99
119
139
158
178
198
238
297
357
396
495
594