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S
F
P
E
C
I
L
Screen size
(diagonal)
ET-ELW20
Zoom lens
[m] [in]
min.
max.
1.02
/
40
1.07
1.48
1.27
/
50
1.35
1.86
1.52
/
60
1.63
2.24
1.78
/
70
1.92
2.62
2.03
/
80
2.20
3.01
2.29
/
90
2.48
3.39
2.54
/
100
2.76
3.77
3.05
/
120
3.32
4.54
3.81
/
150
4.17
5.68
5.08
/
200
5.58
7.59
6.35
/
250
6.99
9.51
7.62
/
300
8.39
11.42
10.16
/
400
11.21
15.24
Screen size
(diagonal)
ET-ELW20
Zoom lens
[m] [in]
min.
max.
1.02
/
40
3.5
1.27
/
50
4.4
1.52
/
60
5.4
/
70
1.78
6.3
2.03
/
80
7.2
2.29
/
90
8.1
11.1
2.54
/
100
9.1
12.4
3.05
/
120
10.9
14.9
3.81
/
150
13.7
18.6
5.08
/
200
18.3
24.9
6.35
/
250
22.9
31.2
7.62
/
300
27.5
37.5
10.16
/
400
36.8
50.0
E
Distance to screen (L)
Zoom
Supplied lens
min.
max.
1.43
2.47
1.80
3.10
2.17
3.73
2.54
4.36
2.91
4.99
3.28
5.62
3.65
6.25
4.39
7.51
5.50
9.40
7.35
12.55
12.49
9.20
15.70
15.64
11.05
18.85
18.79
14.75
25.15
25.10
Distance to screen (L)
Zoom
Supplied lens
min.
max.
4.8
4.7
8.1
6.1
5.9
10.2
7.4
7.1
12.2
8.6
8.3
14.3
9.9
9.5
16.4
10.8
18.4
12.0
20.5
14.4
24.6
18.0
30.8
24.1
41.2
30.2
51.5
36.3
61.9
48.4
82.5
PT
ET-ELT20
ET-ELT21
Zoom lens
Zoom lens
min.
max
min.
max.
2.41
4.00
3.91
6.33
3.04
5.02
4.94
7.97
3.67
6.05
5.97
9.60
4.30
7.08
7.00
11.24
4.93
8.11
8.03
12.87
5.56
9.13
9.06
14.51
6.19
10.16
10.09
16.14
7.45
12.22
12.15
19.42
9.34
15.30
15.24
24.32
20.43
20.38
32.50
25.57
25.53
40.68
30.71
30.68
48.85
40.98
40.98
65.21
ET-ELT20
ET-ELT21
Zoom lens
Zoom lens
min.
max
min.
max.
7.9
13.1
12.8
20.8
10.0
16.5
16.2
26.1
12.0
19.9
19.6
31.5
14.1
23.2
23.0
36.9
16.2
26.6
26.3
42.2
18.2
30.0
29.7
47.6
20.3
33.3
33.1
53.0
24.4
40.1
39.8
63.7
30.6
50.2
50.0
79.8
41.0
67.0
66.9
106.6
51.3
83.9
83.8
133.4
61.7
100.7
100.7
160.3
82.3
134.4
134.5
213.9
/
Height from the edge
of screen to
Fixed-focus
center of lens (H)
Zoom
ET-ELW21
lenses
Fixed-focus
lens
0.66
-0.05
–
0.55
0.84
-0.06
–
0.69
1.02
-0.08
–
0.82
1.20
-0.09
–
0.96
1.38
-0.10
–
1.10
1.56
-0.11
–
1.23
1.74
-0.13
–
1.37
2.10
-0.15
–
1.64
2.64
-0.19
–
2.06
3.54
-0.25
–
2.74
4.44
-0.31
–
3.42
5.34
-0.37
–
4.11
7.14
-0.50
–
5.48
Height from the edge
of screen to
Fixed-focus
center of lens (H)
Zoom
ET-ELW21
lenses
Fixed-focus
lens
2.2
-0.2
–
1.8
2.8
-0.2
–
2.3
3.4
-0.3
–
2.7
3.9
-0.3
–
3.2
4.5
-0.3
–
3.6
5.1
-0.4
–
4.1
5.7
-0.4
–
4.5
6.9
-0.5
–
5.4
8.7
-0.6
–
6.7
11.6
-0.8
–
9.0
14.6
-1.0
–
11.2
17.5
-1.2
–
13.5
23.4
-1.6
–
18.0
Fixed-
focus
lens
0.25
0.31
0.37
0.44
0.50
0.56
0.62
0.75
0.93
1.25
1.56
1.87
2.49
Fixed-
focus
lens
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.5
3.1
4.1
5.1
6.1
8.2
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