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Positioning your projector20
MP780 ST Projection dimensions
Refer to "Dimensions" on page 93 for the center of lens dimensions of this projector before
calculating the appropriate position.
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
30 762 610 457 289 50
40 1016 813 610 398 67
50 1270 1016 762 508 84
60 1524 1219 914 617 101
80 2032 1626 1219 836 135
100 2540 2032 1524 1055 168
120 3048 2438 1829 1274 202
150 3810 3048 2286 1603 252
200 5080 4064 3048 2150 337
220 5588 4470 3353 2369 370
250 6350 5080 3810 2698 421
300 7620 6096 4572 3245 505
Maximum zoom
Minimum zoom
Projection distance
Center of lens
Screen
Vertical offset