当屏幕宽高比为 16:9 时
When the screen aspect ratio is 16:9
镜头类型 / Lens type
镜头型号 / Lens model
投射率 / Throw ratio
SD
1.016 (40")
0.498
1.270 (50")
0.623
1.524 (60")
0.747
1.778 (70")
0.872
2.032 (80")
0.996
2.286 (90")
1.121
2.540 (100")
1.245
3.048 (120")
1.494
3.810 (150")
1.868
5.080 (200")
2.491
6.350 (250")
3.113
7.620 (300")
3.736
8.890 (350")
4.358
10.160 (400")
4.981
镜头型号 / Lens model
SD
1.016 (40")
0.498
1.270 (50")
0.623
1.524 (60")
0.747
1.778 (70")
0.872
2.032 (80")
0.996
2.286 (90")
1.121
2.540 (100")
1.245
3.048 (120")
1.494
3.810 (150")
1.868
5.080 (200")
2.491
6.350 (250")
3.113
7.620 (300")
3.736
8.890 (350")
4.358
10.160 (400")
4.981
10
附表 / Appendix
Fixed focus lens
SH
SW
L (固定值 / Fixed)
0.886
1.107
1.328
1.550
1.771
1.992
2.214
2.657
3.321
4.428
5.535
6.641
7.748
8.855
(固定值 / Fixed)
SH
SW
0.886
1.107
1.328
1.550
1.771
1.992
2.214
2.657
3.321
4.428
5.535
6.641
7.748
8.855
定焦镜头 /
ET-ELW21C
ET-ELW20C
0.779:1
1.26 - 1.69:1
LW
0.66
1.06
0.84
1.40
1.02
1.68
1.20
1.96
1.38
2.24
1.56
2.52
1.74
2.80
2.10
3.36
2.64
4.20
3.54
5.60
4.44
7.00
5.33
8.40
6.23
9.80
7.13
11.20
ET-ELW21C
ET-ELW20C / ET-ELT22C /
H
0.25
0.31
0.37
0.44
0.50
0.56
0.62
0.75
0.93
1.25
1.56
1.87
2.18
2.49
( 单位 / Unit : m)
变焦镜头 / Zoom lens
ET-ELT22C
2.77 - 4.57:1
LT
LW
LT
1.47
2.40
3.99
1.85
3.03
5.01
2.23
3.65
6.04
2.62
4.28
7.06
3.00
4.91
8.09
3.38
5.54
9.11
3.76
6.17
10.14
4.52
7.42
12.18
5.67
9.31
15.26
7.57
12.45
20.38
9.48
15.59
25.51
11.39
18.73
30.63
13.29
21.87
35.75
15.20
25.01
40.88
ET-ELT23C
-0.08 - 0.58
-0.10 - 0.73
-0.12 - 0.87
-0.15 - 1.02
-0.17 - 1.16
-0.19 - 1.31
-0.21 - 1.45
-0.25 - 1.74
-0.31 - 2.18
-0.42 - 2.91
-0.52 - 3.63
-0.62 - 4.36
-0.73 - 5.08
-0.83 - 5.81
ET-ELT23C
4.52 - 7.25:1
LW
LT
3.89
6.31
4.92
7.94
5.95
9.57
6.97
11.21
8.00
12.84
9.02
14.47
10.05
16.10
12.10
19.36
15.18
24.25
20.32
32.41
25.45
40.56
30.58
48.72
35.71
56.87
40.84
65.03