Installation, Adjusting the projector’s zoom / focus, Adjusting projection image size – Optoma HD20 User Manual
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Installation
Adjusting the Projector’s Zoom / Focus
POW
ER
?
Focus Ring
Zoom Ring
You may turn the zoom ring to zoom in or out. To focus the im-
age, rotate the focus ring until the image is clear.
The projector will focus at distances from 4.89 to 32.68 feet
(1.49 to 9.96 meters).
Adjusting Projection Image Size
This table is for user’s reference only.
Diagonal
length (inch)
size of 16:9
Screen
Screen Size W X H
Projection distance (D)
Offset
(Hd)
(m)
(feet)
(m)
(feet)
Width Height Width Height
wide
tele
wide
tele
(m)
(feet)
38
0.84
0.47
2.76
1.55
-
1.51
-
4.97
0.08
0.25
45
1.00
0.56
3.27
1.84
1.49
1.79
4.89
5.88
0.09
0.29
50
1.11
0.62
3.63
2.04
1.66
1.99
5.45
6.54
0.10
0.33
60
1.33
0.75
4.36
2.45
1.99
2.39
6.54
7.84
0.12
0.39
70
1.55
0.87
5.08
2.86
2.32
2.79
7.63
9.15
0.14
0.46
80
1.77
1.00
5.81
3.27
2.66
3.19
8.72
10.46
0.16
0.52
90
1.99
1.12
6.54
3.68
2.99
3.59
9.81
11.77
0.18
0.59
100
2.21
1.25
7.26
4.09
3.32
3.98
10.89
13.07
0.20
0.65
120
2.66
1.49
8.72
4.90
3.98
4.78
13.07
15.69
0.24
0.78
150
3.32
1.87
10.89
6.13
4.98
5.98
16.34
19.61
0.30
0.98
200
4.43
2.49
14.53
8.17
6.64
7.97
21.79
26.15
0.40
1.31
300
6.64
3.74
21.79
12.26
9.96
-
32.68
-
0.60
1.96
Width
H
ei
gh
t
Diag
onal
Screen
Screen
Projection Distance (D)
Projection Distance (D)
Screen (W)
Screen (H)
Offset (Hd)
Top View
SO
U
RC
E