Chapter 2
Getting Started — Setting up
ENGLISH - 45
r
When the screen aspect ratio is 4:3
(Unit: m)
Lens type
Zoom Lens
Fixed-
focus
Lens
Projection lens Model No.
Standard zoom
lens/ET-ELS20
ET-ELW22
ET-ELW20
ET-ELT20
ET-ELT21
ET-ELW21
Throw ratio
*1
2.0-3.4:1
1.0-1.2:1
1.5-2.0:1
3.3-5.5:1
5.4-8.7:1
0.9:1
Projected image size
Projection distance (L)
Diagonal (SD) Height
(SH)
Width
(SW)
Min.
(LW)
Max.
(LT)
Min.
(LW)
Max.
(LT)
Min.
(LW)
Max.
(LT)
Min.
(LW)
Max.
(LT)
Min.
(LW)
Max.
(LT)
Fixed
1.016 (40")
0.610
0.813
1.57
2.70
―
―
1.18
1.62
2.64
4.38
4.29
6.94
0.73
1.270 (50")
0.762
1.016
1.97
3.39
―
―
1.48
2.04
3.33
5.50
5.41
8.73
0.93
1.524 (60")
0.914
1.219
2.38
4.08
1.15
1.44
1.79
2.45
4.02
6.62
6.54
10.51
1.12
1.778 (70")
1.067
1.422
2.78
4.77
1.35
1.68
2.10
2.87
4.71
7.75
7.67
12.30
1.32
2.032 (80")
1.219
1.626
3.18
5.46
1.55
1.93
2.41
3.29
5.40
8.87
8.79
14.09
1.52
2.286 (90")
1.372
1.829
3.59
6.15
1.75
2.18
2.71
3.71
6.08
9.99
9.92
15.87
1.71
2.540 (100")
1.524
2.032
3.99
6.84
1.94
2.42
3.02
4.12
6.77
11.11
11.04
17.66
1.91
3.048 (120")
1.829
2.438
4.80
8.21
2.34
2.92
3.64
4.96
8.15
13.36
13.29
21.24
2.30
3.810 (150")
2.286
3.048
6.01
10.28
2.94
3.66
4.56
6.21
10.22
16.73
16.67
26.60
2.89
5.080 (200")
3.048
4.064
8.04
13.72
3.94
4.90
6.10
8.30
13.66
22.34
22.30
35.53
3.88
6.350 (250")
3.810
5.080
10.06
17.16
4.93
6.13
7.64
10.39
17.10
27.95
27.92
44.47
4.86
7.620 (300")
4.572
6.096
12.08
20.61
5.93
7.37
9.18
12.48
20.55
33.57
33.55
53.40
5.85
8.890 (350")
5.334
7.112
14.10
24.05
6.93
8.60
10.72
14.57
23.99
39.18
39.18
62.34
6.83
10.160 (400")
6.096
8.128
16.12
27.49
7.92
9.84
12.25
16.66
27.43
44.79
44.80
71.28
7.81
Projection lens Model No.
Standard zoom lens/
ET-ELS20/ET-ELW20/
ET-ELT20/ET-ELT21
ET-ELW22
ET-ELW21
(Fixed)
Projected image size
Height position (H)
*2
Diagonal (SD) Height
(SH)
Width
(SW)
1.016 (40")
0.610
0.813
-
0.10 - 0.71
―
0.30
1.270 (50")
0.762
1.016
-
0.13 - 0.89
―
0.38
1.524 (60")
0.914
1.219
-
0.16 - 1.07
-
0.09 - 1.01
0.46
1.778 (70")
1.067
1.422
-
0.18 - 1.25
-
0.11 - 1.17
0.53
2.032 (80")
1.219
1.626
-
0.21 - 1.43
-
0.12 - 1.34
0.61
2.286 (90")
1.372
1.829
-
0.23 - 1.60
-
0.14 - 1.51
0.69
2.540 (100")
1.524
2.032
-
0.26 - 1.78
-
0.15 - 1.68
0.76
3.048 (120")
1.829
2.438
-
0.31 - 2.14
-
0.18 - 2.01
0.91
3.810 (150")
2.286
3.048
-
0.39 - 2.67
-
0.23 - 2.51
1.14
5.080 (200")
3.048
4.064
-
0.52 - 3.57
-
0.30 - 3.35
1.52
6.350 (250")
3.810
5.080
-
0.65 - 4.46
-
0.38 - 4.19
1.91
7.620 (300")
4.572
6.096
-
0.78 - 5.35
-
0.46 - 5.03
2.29
8.890 (350")
5.334
7.112
-
0.91 - 6.24
-
0.53 - 5.87
2.67
10.160 (400")
6.096
8.128
-
1.04 - 7.13
-
0.61 - 6.71
3.05
*1 The throw ratio is based on the value during projection of 2.03 m (80") projected image size.
*2 When the Fixed-focus Lens (Model No.: ET-ELW21) is attached, the lens shift is not possible, therefore the height position (H) becomes SH/2.