Obtaining A Preferred Projected Image Size - BenQ MS619ST 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 57
before calculating the appropriate position.
MS619ST/MX620ST
The screen aspect ratio is 4:3 and the projected picture is 4:3
Diagonal
Inch mm
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
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
"Distance from screen (mm)"
150'' (about 3.8 m) screen is required.
14 Positioning your projector
4:3 Screen diagonal
H
Vertical offset
W
Screen size
W
H (mm)
(mm)
813 610
1016 762
1219 914
1626 1219
2032 1524
2438 1829
3048 2286
4064 3048
4470 3353
5080 3810
6096 4572
column is 3028 mm. Looking across this row shows that a
for the center of lens dimensions of this projector
Screen
Projection distance
Distance from screen (mm)
Min
length
Average
(max.
zoom)
734
917
1101
1468
1835
2202
2752
3670
4037
4587
5505
Center of lens
Max
length
(min.
zoom)
807 881
1009 1101
1211 1321
1615 1761
2018 2202
2422 2642
3028 3303
4037 4404
4440 4844
5046 5505
6055 6606
Vertical
offset
(mm)
30
38
46
61
76
91
114
152
168
191
229