Obtaining A Preferred Projected Image Size - BenQ EX800ST 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
EX800ST
• 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 1487 mm.
If your measured projection distance is 1000 mm, the closest match in the
column is 992 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.
14 Positioning your projector
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)
744
868
992
1116
1240
1363
1487
"Distance from screen (mm)"
Lowest/
137
160
183
206
229
251
274