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12 Positioning your projector
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
• The screen aspect ratio is 16:9 and the projected picture is in a 16:9 aspect ratio
For example, if you are using a 120-inch screen, the recommended projection distance is 2019 mm.
If your measured projection distance is 150 cm, the closest match in the
column is 1514 mm. Looking across this row shows that a 90'' (about 2.3 m) screen is required.
Screen size
Distance from screen (mm)
Vertical offset
(Lowest/Highest
lens position) (mm)
Diagonal
H (mm) W (mm)
Min length
Average
Max length
Inch
mm
(max. zoom)
(min. zoom)
30
762
374
664
458
505
551
10
40
1016
498
886
611
673
735
13
50
1270
623
1107
764
841
919
16
60
1524
747
1328
917
1009
1102
20
70
1778
872
1550
1069
1178
1286
23
80
2032
996
1771
1222
1346
1470
26
90
2286
1121
1992
1375
1514
1654
30
100
2540
1245
2214
1528
1682
1837
33
110
2794
1370
2435
1680
1851
2021
36
120
3048
1494
2657
1833
2019
2205
40
130
3302
1619
2878
1986
2187
2389
43
140
3556
1743
3099
2139
2355
2572
46
150
3810
1868
3321
2291
2524
2756
49
160
4064
1992
3542
2444
2692
2940
53
170
4318
2117
3763
2597
2860
3124
56
180
4572
2241
3985
2750
3028
3307
59
190
4826
2366
4206
2902
3197
3491
63
200
5080
2491
4428
3055
3365
3675
66
To optimize your projection quality, we suggest doing the projection by referring to the values listed in the non-gray
rows.
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.
H
W
Projection distance
Center of lens
Screen
16:9 Screen diagonal
Vertical offset