Benq MX722 Manuel D’Utilisation

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Positioning your projector
15
Obtaining a preferred projected image size
The distance from the projector lens to the screen, the zoom setting, and the video format 
each factors in the projected image size.
Projection dimensions 
Refer to 
 for the center of lens dimensions of this projector 
before calculating the appropriate position.
The screen aspect ratio is 4:3 and the projected picture is 4:3:
For example, if you are using an 120-inch screen, the recommended projection distance is 
4246 mm and the vertical offset is 137 mm.
If your measured projection distance is 5.0 m (5000 mm), the closest match in the 
 column is 5308 mm. Looking across this row shows that a 
150'' (about 3.8 m) screen is required.
All measurements are approximate and may vary from the actual sizes.
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.
Screen size
Distance from screen (mm)
Vertical 
offset 
(mm)
Diagonal
(mm)
(mm)
Min length
Average
Max length
Inch
mm
(max. 
zoom)
(min. zoom)
40
1016
813
610
1231
1415
1600
46 
50
1270
1016
762
1538
1769
2000
57
60
1524
1219
914
1846
2123
2400
69 
70
1778
1422
1067
2154
2477
2800
80 
80
2032
1626
1219
2462
2831
3200
91
90
2286
1829
1372
2769
3185
3600
103
100
2540
2032
1524
3077
3538
4000
114 
120
3048
2438
1829
3692
4246
4800
137 
150
3810
3048
2286
4615
5308
6000
171 
200
5080
4064
3048
6154
7077
8000
229 
250
6350
5080
3810
7692
8846
10000
286 
300
7620
6096
4572
9231
10615
12000
343
Maximum zoom
Minimum zoom
Projection distance
Center of lens
Screen
Vertical offset