Obtaining A Preferred Projected Image Size - BenQ MS504 User Manual

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 "Dimensions" on page 52
before calculating the appropriate position.
The screen aspect ratio is 4:3 and the projected picture is 4:3
Diagonal
Inch mm
30 762
40 1016
50 1270
60 1524
80 2032
100 2540
120 3048
150 3810
200 5080
220 5588
250 6350
300 7620
For example, if you are using an 120-inch screen, the recommended projection distance is
4762 mm and the vertical offset is 183 mm.
If your measured projection distance is 6.0 m (6000 mm), the closest match in the
"Distance from screen (mm)"
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.
14 Positioning your projector
for the center of lens dimensions of this projector
4:3 Screen diagonal
H
W
Vertical offset
Screen size
W (mm) H (mm)
610 457
813 610
1016 762
1219 914
1626 1219
2032 1524
2438 1829
3048 2286
4064 3048
4470 3353
5080 3810
6096 4572
column is 5953 mm. Looking across this row shows that a
Screen
Center of lens
Projection distance
Distance from screen (mm)
Min
length
Average
(max.
zoom)
1134 1191
1512 1587
1890 1984
2268 2381
3024 3175
3780 3968
4535 4762
5669 5953
7559 7937
8315 8731
9449 9921
11339 11905
Max Vertical
length offset
(mm)
(min.
zoom)
1247 46
1663 61
2079 76
2494 91
3326 122
4157 152
4989 183
6236 229
8315 305
9146 335
10394 381
12472 457