BenQ MP522 ST - Manual (Page 16)

Positioning your projector 16
Projection dimensions
Refer to "Dimensions" on page 58 for the center of lens dimensions of this projector before
calculating the appropriate position.
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.
4:3 screen diagonal Recommended projection distance from
screen in mm
Vertical offset in mm
Feet Inches mm Average
4 48 1219 873 37
59 1500 1074 45
5 60 1524 1091 46
6 72 1829 1309 55
79 2000 1432 60
7 84 2134 1527 64
8 96 2438 1745 73
98 2500 1790 75
9 108 2743 1964 82
118 3000 2147 90
10 120 3048 2182 91
138 3500 2505 105
12 144 3658 2618 110
157 4000 2863 120
15 180 4572 3273 137
197 5000 3579 150
18 216 5486 3927 165
236 6000 4295 180
25 300 7620 5455 229
4:3 screen diagonal
Projection distance
Center of lens
Screen
Vertical offset