BenQ CP120C - Manual (Page 21)

Positioning your projector 15
Screen size chart
There is 3% ~ 5% tolerance among these numbers due to optical component variations.
4:3 Screen Diagonal 4:3 Aspect in mm Distance from Screen in mm
Vertical
Offset in
mm
Feet Inches mm Width Height
Min length
(with max.
zoom)
Average
Max length
(with min.
zoom)
4 48 1219 975 732 1752 1903 2054 91
1500 1200 900 2155 2341 2527 113
5 60 1524 1219 914 2190 2379 2568 114
6 72 1829 1463 1097 2628 2854 3081 137
2000 1600 1200 2874 3122 3370 150
7 84 2134 1707 1280 3066 3330 3595 160
8 96 2438 1951 1463 3503 3806 4109 183
2500 2000 1500 3592 3902 4212 188
9 108 2743 2195 1646 3941 4282 4622 206
3000 2400 1800 4310 4682 5054 225
10 120 3048 2438 1829 4379 4757 5135 229
3500 2800 2100 5029 5463 5897 263
12 144 3658 2926 2195 5256 5709 6163 274
4000 3200 2400 5747 6243 6739 300
15 180 4572 3658 2743 6569 7136 7703 343
5000 4000 3000 7184 7804 8424 375
18 216 5486 4389 3292 7883 8563 9244 411
6000 4800 3600 8621 9365 10109 450
25 300 7620 6096 4572 10948 11893 12838 572
Maximum
zoom
Minimum
zoom
Projection distance
Center of lens
Screen
Offset