Acer X1278H Series - How to Optimize Image Size and Distance

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How to optimize image size and distance
• XGA series
Consult the table below to find the optimal image sizes achievable when the
projector is positioned at a desired distance from the screen.
If the projector is 2.0 m from the screen, good image quality is possible for
image sizes between 46" and 50".
Note: Remind as below figure, the space of 100 cm height is
required when located at 2.0 m distance.
Desired
Distance
(m)
<A>
Screen size
Top
Screen size
Top
(Min zoom) (Max zoom)
Diagonal
(inch)
<B>
W (cm) x H
(cm)
From base to top
of image (cm)
<C>
Diagonal
(inch)
<B>
W (cm) x H
(cm)
From base to top
of image (cm)
<C>
1.5 34 70 x 53 68 38 77 x 58 75
2 46 93 x 70 91 50 103 x 77 100
2.5 57 117 x 88 114 63 128 x 96 125
3 69 140x 105 137 76 154 x 115 150
3.5 80 164 x 123 159 88 179 x 135 175
4 92 187 x 140 182 101 205 x 154 200
4.5 103 210 x 158 205 114 231 x 173 225
5 115 234 x 175 228 126 256 x 192 250
6 138 280 x 210 273 151 308 x 231 300
7 161 327 x 245 319 177 359 x 269 350
8 184 374 x 280 364 202 410 x 308 400
9 207 421 x 315 410 227 462 x 346 450
10 230 467 x 350 456 252 513 x 385 500
Zoom Ratio: 1.1x
50"
46"
46"
6
A
C
B
Height: 100 cm
from base to
top of image
Height:
91 cm
2.0 m
Desired Distance
M
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