Benq Digital Projector MP782 ST Manuel D’Utilisation

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Positioning your projector
18
Table B1: The screen aspect ratio is 4:3 and the projected picture is 4:3
Table B2: The screen aspect ratio is 4:3 and the projected picture is 16:10
There is 3% 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 in situ 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.
(a) Screen size
Projected picture size (b) Distance 
from screen
(mm)
(c) Vertical 
offset
(mm)
Diagonal
Height
(mm)
Width
(mm)
Height
(mm)
Width
(mm)
Inches
mm
30
762
457
610
457
610
357
34
50
1270
762
1016
762
1016
596
57
80
2032
1219
1626
1219
1626
953
91
100
2540
1524
2032
1524
2032
1192
114
120
3048
1829
2438
1829
2438
1430
137
150
3810
2286
3048
2286
3048
1787
171
180
4572
2743
3658
2743
3658
2145
206
200
5080
3048
4064
3048
4064
2383
229
220
5588
3353
4470
3353
4470
2622
251
240
6096
3658
4877
3658
4877
2860
274
270
6858
4115
5486
4115
5486
3217
309
300
7620
4572
6096
4572
6096
3575
343
(a) Screen size
Projected picture size (b) Distance 
from screen
(mm)
(c) Vertical 
offset
(mm)
Diagonal
Height
(mm)
Width
(mm)
Height
(mm)
Width
(mm)
Inches
mm
30
762
457
610
381
610
298
19
50
1270
762
1016
635
1016
497
32
80
2032
1219
1626
1016
1626
794
51
100
2540
1524
2032
1270
2032
993
64
120
3048
1829
2438
1524
2438
1192
76
150
3810
2286
3048
1905
3048
1490
95
180
4572
2743
3658
2286
3658
1787
114
200
5080
3048
4064
2540
4064
1986
127
220
5588
3353
4470
2794
4470
2185
140
240
6096
3658
4877
3048
4877
2383
152
270
6858
4115
5486
3429
5486
2681
171
300
7620
4572
6096
3810
6096
2979
191
(a)
(b)
Center of lens
Screen
(c)
B1
(a)
(b)
Center of lens
Screen
(c)
B2