BenQ CP220 - Manual (Page 20)

Positioning your projector 14
There is 3%-5% tolerance among these numbers due to optical component variations.
4:3 Screen Diagonal Distance from Screen in mm Vertical Offset in mm
Feet Inches mm Min length
(with max.
zoom)
Average Max length
(with min.
zoom)
4 48 1219 1893 2007 2121 25
1500 2330 2469 2609 31
5 60 1524 2367 2509 2651 31
6 72 1829 2840 3011 3181 38
2000 3106 3292 3479 41
7 84 2134 3314 3512 3711 44
8 96 2438 3787 4014 4241 50
2500 3883 4116 4349 51
9 108 2743 4260 4516 4772 56
3000 4659 4939 5218 62
10 120 3048 4734 5018 5302 63
3500 5436 5762 6088 72
12 144 3658 5680 6021 6362 75
4000 6212 6585 6958 82
15 180 4572 7101 7527 7953 94
5000 7765 8231 8697 103
18 216 5486 8521 9032 9543 113
6000 9318 9877 10437 123
25 300 7620 11834 12544 13254 156
Maximum zoom Minimum zoom
Projection distance
Center of lens
Screen
Offset