Obtaining A Preferred Projected Image Size - BenQ MS612ST 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.
For example, if you are using a 120-inch screen, the recommended projection distance is
2422 mm and the vertical offset is 91 mm.
If your measured projection distance is 3.0 m (3000 mm), the closest match in the
from screen (mm)"
3.8 m) screen is required.
Projection dimensions
Refer to "Dimensions" on page 62
calculating the appropriate position.
Maximum zoom
Diagonal
Inch
40 1016
50 1270
60 1524
80 2032
100 2540
120 3048
150 3810
200 5080
220 5588
250 6350
300 7620
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.
14 Positioning your projector
column is 3028 mm. Looking across this row shows that a 150'' (about
Minimum zoom
Screen size
W (mm) H (mm)
mm
813
1016
1219
1626 1219
2032 1524
2438 1829
3048 2286
4064 3048
4470 3353
5080 3810
6096 4572
for the center of lens dimensions of this projector before
Vertical offset
Projection distance
Distance from screen (mm)
Min
length
(max.
zoom)
610 734
762 917
914 1101
1468
1835
2202
2752
3670
4037
4587
5505
Screen
Center of lens
Max
length
Average
(min.
zoom)
807 881
1009 1101
1211 1321
1615 1761
2018 2202
2422 2642
3028 3303
4037 4404
4440 4844
5046 5505
6055 6606
"Distance
Vertical
offset
(mm)
30
38
46
61
76
91
114
152
168
191
229