BenQ MS3081+, User Manual

Page: 14 / 58

Positioning your projector 14
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 55 for the center of lens dimensions of this projector
before calculating the appropriate position.
The screen aspect ratio is 4:3 and the projected picture is in a 4:3 aspect ratio
For example, if you are using an 150-inch screen, the recommended projection distance is
6260 mm and the vertical offset is 229 mm.
If your measured projection distance is 5.0 m (5000 mm), the closest match in the
"Distance from screen (mm)" column is 5008 mm. Looking across this row shows that a
120'' (about 3.05 m) screen is required.
Screen size Distance from screen (mm)
Vertical
offset
(mm)
Diagonal
W (mm) H (mm)
Min
length
Average
Max
length
Inch mm
(max.
zoom)
(min.
zoom)
60 1524 1219 914 2385 2504 2623 91
70 1778 1422 1067 2782 2921 3060 107
80 2032 1626 1219 3179 3338 3497 122
90 2286 1829 1372 3577 3756 3935 137
100 2540 2032 1524 3974 4173 4372 152
120 3048 2438 1829 4769 5008 5246 183
140 3556 2845 2134 5564 5842 6121 213
150 3810 3048 2286 5962 6260 6558 229
160 4064 3251 2438 6359 6677 6995 244
180 4572 3658 2743 7154 7512 7869 274
200 5080 4064 3048 7949 8346 8744 305
220 5588 4470 3353 8744 9181 9618 335
240 6096 4877 3658 9538 10015 10492 366
260 6604 5283 3962 10333 10850 11367 396
280 7112 5690 4267 11128 11685 12241 427
300 7620 6096 4572 11923 12519 13115 457
H
W
Projection distance
Center of lens
Screen
Vertical offset
4:3 Screen diagonal