BenQ MW571, User Manual

Page: 14 / 61

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 16:10 and the projected picture is in a 16:10 aspect ratio
For example, if you are using an 120-inch screen, the recommended projection distance is
3593 mm and the vertical offset is 161.5 mm.
If your measured projection distance is 3.0 m (3000 mm), the closest match in the
"Distance from screen (mm)" column is 2994 mm. Looking across this row shows that a
100'' (about 2.5 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.
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 1292 808 1564 1796 2029 80.8
70 1778 1508 942 1824 2096 2367 94.2
80 2032 1723 1077 2085 2395 2705 107.7
90 2286 1939 1212 2346 2695 3044 121.2
100 2540 2154 1346 2606 2994 3382 134.6
110 2794 2369 1481 2867 3293 3720 148.1
120 3048 2585 1615 3128 3593 4058 161.5
130 3302 2800 1750 3388 3892 4396 175.0
140 3556 3016 1885 3649 4192 4734 188.5
150 3810 3231 2019 3909 4491 5073 201.9
160 4064 3446 2154 4170 4790 5411 215.4
170 4318 3662 2289 4431 5090 5749 228.9
180 4572 3877 2423 4691 5389 6087 242.3
H
W Projection distance
Center of lens
Screen
16:10 Screen diagonal