Benq SP831 Manuel D’Utilisation
20
Positioning your projector
Projection dimensions
for the center of lens dimensions of this projector before
calculating the appropriate position.
When the screen aspect ratio is 16:9 and the projected picture is 16:9
Table A: The screen aspect ratio is 16:9 and the projected picture is 16:9
Screen Dimensions
Distance from Screen in mm
Vertical
Offset
Diagonal
Height Width Min length
(max. zoom)
Average
Max length
(min. zoom)
mm
Feet
Inches
mm
mm
mm
2.5
30
762
457
610
1043
1127
1210
46
4.2
50
1270
762
1016
1739
1878
2017
76
6.7
80
2032
1219
1626
2783
3005
3228
122
8.3
100
2540
1524
2032
3478
3757
4035
152
10.0
120
3048
1829
2438
4174
4508
4842
183
12.5
150
3810
2286
3048
5217
5635
6052
229
15.0
180
4572
2743
3658
6261
6762
7263
274
16.7
200
5080
3048
4064
6957
7513
8070
305
18.3
220
5588
3353
4470
7652
8264
8877
335
20.0
240
6096
3658
4877
8348
9016
9683
366
Maximum zoom
Minimum zoom
Projection distance
Center of lens
Screen
Offset
Floor Installation
Maximum zoom
Minimum zoom
Projection distance
Center of lens
Screen
Offset
Ceiling Installation