Benq TH670s User Manual download pdf (Page 18)

Positioning your projector18

Projection dimensions

Refer to "Dimensions" on page 70 for the center of lens dimensions of this projector

before calculating the appropriate position.

For example, If you are using a 60-inch screen, the projection distance is 2194 mm and

with a vertical offset of 120 mm.

If your measured projection distance is 5.5 m (5500 mm), the closest match in the

"Distance from screen (mm)" column is 5485 mm. Looking across this row shows that a

150'' (about 3810 mm) 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.

Screen size Distance from screen (mm)

Vertical offset

(mm)

Diagonal W

(mm)

Min length

Average

Max length

Inch mm (max. zoom) (min. zoom)

30 762 664 374 994 1097 1200 60

40 1016 886 498 1325 1463 1600 80

60 1524 1328 747 1988 2194 2400 120

80 2032 1771 996 2651 2926 3200 159

100 2540 2214 1245 3313 3657 4000 199

120 3048 2657 1494 3976 4388 4800 239

150 3810 3321 1868 4970 5485 6000 299

200 5080 4428 2491 6627 7314 8000 399

250 6350 5535 3113 8283 9142 10000 498

300 7620 6642 3736 9940 10970 12000 598

16:9 Screen diagonal

Projection distance

Center of lens

Screen

Vertical of fset

1 2 ... 13 14 15 16 17 18 19 20 21 22 23 ... 74 75

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Benq TH670s User Manual Page 18