Acer V9800 - How to Get a Preferred Image Size by Adjusting Distance and Zoom

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How to Get a Preferred Image Size by Adjusting
Distance and Zoom
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 100", set the projector at a distance between 3.0 m
and 4.5 m from the screen and adjust the zoom level accordingly.
Desired Image Size Distance (m) Top (cm)
Diagonal (inch)
< A >
W (cm) x H (cm)
Max zoom
< B >
Min zoom
< C >
From base to top of
image < D >
95 210 x 118 2.8 4.3 136
100 221 x 125 3.0 4.5 143
110 244 x 137 3.3 4.9 158
120 266 x 149 3.6 5.4 172
140 310 x 174 4.2 6.3 201
150 332 x 187 4.5 6.7 215
165 365 x 205 4.9 7.4 236
180 398 x 224 5.4 8.1 258
Zoom Ratio: 1.5 x
Desired distance
Height:
143 cm
From base
to top of
image
100"
Desired
image size
3.0 m
4.5 m