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Positioning your projector
19
When the screen aspect ratio is 4:3 and the projected picture is 4:3
Table B1: The screen aspect ratio is 4:3 and the projected picture is 4:3
Screen Dimensions
Projected
picture size
Distance from Screen in mm Vertical
Offset
Diagonal
Height Width Height Width
Min
(Max
zoom)
Average
Max
(Min
zoom)
Feet Inches
mm
mm
mm
mm
mm
mm
2.5 30
762
457
610
457
610
1161
1254
1347
18
4.2 50
1270
762
1016
762
1016
1935
2090
2245
30
6.7 80
2032
1219
1626
1219
1626
3097
3344
3592
49
8.3 100
2540
1524
2032
1524
2032
3871
4180
4490
61
10.0 120
3048
1829
2438
1829
2438
4645
5017
5388
73
12.5 150
3810
2286
3048
2286
3048
5806
6271
6735
91
15.0 180
4572
2743
3658
2743
3658
6967
7525
8082
110
16.7 200
5080
3048
4064
3048
4064
7742
8361
8980
122
18.3 220
5588
3353
4470
3353
4470
8516
9197
9878
134
20.0 240
6096
3658
4877
3658
4877
9290
10033
10776
146
22.5 270
6858
4115
5486
4115
5486
10451
11287
12123
165
25.0 300
7620
4572
6096
4572
6096
11612
12541
13470
183
Maximum zoom
Minimum zoom
Projection distance
Center of lens
Screen
Floor Installation
Vertical Offset
Maximum zoom
Minimum zoom
Projection distance
Center of lens
Screen
Ceiling Installation
Vertical Offset