Benq SP840 User Manual
Positioning your projector
17
English
SP840 projection dimensions
for the center of lens dimensions of this projector before
calculating the appropriate position.
There is 5% tolerance among these numbers due to optical component variations. BenQ
recommends that if you intend to permanently install the projector, you should physically test
the projection size and distance using the actual projector before you permanently install it,
so as to make allowance for this projector's optical characteristics. This will help you
determine the exact mounting position so that it best suits your installation location.
recommends that if you intend to permanently install the projector, you should physically test
the projection size and distance using the actual projector before you permanently install it,
so as to make allowance for this projector's optical characteristics. This will help you
determine the exact mounting position so that it best suits your installation location.
16:9 screen
Recommended projection dis-
tance from screen in mm
Vertical
offset in
mm
diagonal
Width
Height
Min
length
(with max.
zoom)
Average
Max
length
(with min
zoom)
Inches
mm
mm
mm
30
762
664
374
1056
1162
1267
112
40
1016
886
498
1408
1549
1690
149
50
1270
1107
623
1760
1936
2112
187
60
1524
1328
747
2112
2323
2534
224
80
2032
1771
996
2816
3098
3379
299
100
2540
2214
1245
3520
3872
4224
374
120
3048
2657
1494
4224
4646
5069
448
150
3810
3321
1868
5280
5808
6336
560
200
5080
4428
2491
7040
7744
8448
747
220
5588
4870
2740
7744
8518
9293
822
250
6350
5535
3113
8800
9680
10560
934
300
7620
6641
3736
10560
-
-
1121
Projection distance
Center of lens
Screen
Vertical offset
Maximum zoom
Minimum zoom