Obtaining A Preferred Projected Image Size - BenQ MX808ST User Manual

Obtaining a preferred projected image size

The distance from the projector lens to the screen, the zoom setting (if available), and the video format
each factors in the projected image size.
Projection dimensions
MX808ST/MX825ST
• The screen aspect ratio is 4:3 and the projected picture is in a 4:3 aspect ratio
Diagonal
Inch mm
60 1524
70 1778
80 2032
90 2286
100 2540
110 2794
120 3048
For example, if you are using a 120-inch screen, the recommended projection distance is 1477 mm.
If your measured projection distance is 1000 mm, the closest match in the
column is 985 mm. Looking across this row shows that a 80'' (about 2.0 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.
4:3 Screen diagonal
H
W
Screen size
H (mm)
914
1067
1219
1372
1524
1676
1829
Screen
Center of lens
Projection distance
Distance from screen
W (mm)
1219
1422
1626
1829
2032
2235
2438
Highest Lens
(mm)
position (mm)
738
862
985
1108
1231
1354
1477
"Distance from screen (mm)"
Positioning your projector
Lowest/
137
160
183
206
229
251
274
13