BenQ TX762 ST, User Manual

Page: 15 / 60

Positioning your projector 15
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.
For example, if you are using a 120-inch screen, the recommended projection distance is
1481 mm and the vertical offset is 274 mm.
If your measured projection distance is 1.0 m (1000 mm), the closest match in the "Distance
from screen (mm)" column is 988 mm. Looking across this row shows that a 80'' (about 2.0
m) screen is required.
There is 3% tolerance among these numbers due to optical component variations.
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)
Inch mm
40 1016 813 610 494 91
50 1270 1016 762 617 114
60 1524 1219 914 741 137
80 2032 1626 1219 988 183
100 2540 2032 1524 1235 229
120 3048 2438 1829 1481 274
150 3810 3048 2286 1852 343
200 5080 4064 3048 2469 457
220 5588 4470 3353 2716 503
250 6350 5080 3810 3086 572
300 7620 6096 4572 3704 686
Projection distance
Center of lens
Screen
Vertical offset
Screen Size