Obtaining A Preferred Projected Image Size - BenQ MW571 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 55
before calculating the appropriate position.
The screen aspect ratio is 16:10 and the projected picture is in a 16:10 aspect ratio
Diagonal
Inch mm
60 1524
70 1778
80 2032
90 2286
100 2540
110 2794
120 3048
130 3302
140 3556
150 3810
160 4064
170 4318
180 4572
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)"
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.
14 Positioning your projector
16:10 Screen diagonal
H
W
Screen size
W (mm) H (mm)
1292 808
1508 942
1723 1077
1939 1212
2154 1346
2369 1481
2585 1615
2800 1750
3016 1885
3231 2019
3446 2154
3662 2289
3877 2423
column is 2994 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)
1564
1824
2085
2346
2606
2867
3128
3388
3649
3909
4170
4431
4691
Center of lens
Max length
(min.
zoom)
1796 2029
2096 2367
2395 2705
2695 3044
2994 3382
3293 3720
3593 4058
3892 4396
4192 4734
4491 5073
4790 5411
5090 5749
5389 6087
Vertical
offset
(mm)
80.8
94.2
107.7
121.2
134.6
148.1
161.5
175.0
188.5
201.9
215.4
228.9
242.3