低倍率および中倍率のアイピースは、1.4倍または２倍間隔で視野環の直径比率で選んでください。高倍率アイピースは倍率比で選びます。
|
広い実視界の 2インチアイピース |
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|
焦点距離 |
形式 |
見掛け視界 |
視野環直径 |
アイレリーフ |
望遠鏡のＦ値に対する |
||||
|
F/4.5 |
F/5.2 |
F/7 |
F/10 |
F/14 |
|||||
|
55 |
Plossl |
50 |
46.0 |
38 |
12.2 |
10.6 |
7.9 |
5.5 |
3.9 |
|
31 |
Nagler Type5 |
82 |
42.0 |
19 |
6.9 |
6.0 |
4.4 |
3.1 |
2.2 |
|
35 |
Panoptic |
68 |
38.7 |
24 |
7.8 |
6.7 |
5.0 |
3.5 |
2.5 |
|
26 |
Nagler Type5 |
82 |
35.0 |
16 |
5.8 |
5.0 |
3.7 |
2.6 |
1.9 |
|
22 |
Nagler Type4 |
82 |
31.1 |
19 |
4.9 |
4.2 |
3.1 |
2.2 |
1.6 |
|
27 |
Panoptic |
68 |
30.5 |
19 |
6.0 |
5.2 |
3.9 |
2.7 |
1.9 |
|
17 |
Nagler Type4 |
82 |
24.3 |
17 |
3.8 |
3.3 |
2.4 |
1.7 |
1.2 |
|
広い実視界の 1 1/4インチアイピース |
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|
F.L. |
Type |
App.Field |
F.S.Dia |
Eye.Rel |
F/4.5 |
F/5.2 |
F/7 |
F/10 |
F/14 |
|
40 |
Plossl |
43 |
27.0 |
28 |
8.9 |
7.7 |
5.7 |
4.0 |
2.9 |
|
32 |
Plossl |
50 |
27.0 |
22 |
7.1 |
6.2 |
4.6 |
3.2 |
2.3 |
|
24 |
Panoptic |
68 |
27.0 |
15 |
5.3 |
4.6 |
3.4 |
2.4 |
1.7 |
|
22 |
Panoptic |
68 |
25.0 |
15 |
4.9 |
4.2 |
3.1 |
2.2 |
1.6 |
|
16 |
Nagler Type5 |
82 |
22.1 |
10 |
3.6 |
3.1 |
2.3 |
1.6 |
1.1 |
|
16 |
Nagler Type2 |
82 |
21.9 |
10 |
3.6 |
3.1 |
2.3 |
1.6 |
1.1 |
|
19 |
Panoptic |
68 |
21.3 |
13 |
4.2 |
3.7 |
2.7 |
1.9 |
1.4 |
|
25 |
Plossl |
50 |
21.2 |
17 |
5.6 |
4.8 |
3.6 |
2.5 |
1.8 |
|
18 |
Radian |
60 |
18.3 |
20 |
4.0 |
3.5 |
2.6 |
1.8 |
1.3 |
|
13 |
Nagler Type6 |
82 |
17.6 |
12 |
2.9 |
2.5 |
2.0 |
1.3 |
0.9 |
|
20 |
Plossl |
50 |
17.1 |
14 |
4.4 |
3.8 |
2.9 |
2.0 |
1.4 |
|
15 |
Panoptic |
68 |
17.1 |
10 |
3.3 |
2.9 |
2.1 |
1.5 |
1.1 |
|
12 |
Nagler Type4 |
82 |
17.1 |
17 |
2.7 |
2.3 |
1.7 |
1.2 |
0.9 |
|
中倍率の 1 1/4インチアイピース |
|||||||||
|
F.L. |
Type |
App.Field |
F.S.Dia |
Eye.Rel |
F/4.5 |
F/5.2 |
F/7 |
F/10 |
F/14 |
|
14 |
Radian |
60 |
14.4 |
20 |
3.1 |
2.7 |
2.0 |
1.4 |
1.0 |
|
15 |
Plossl |
50 |
12.6 |
10 |
3.3 |
2.9 |
2.1 |
1.5 |
1.1 |
|
12 |
Radian |
60 |
12.6 |
20 |
2.7 |
2.3 |
1.7 |
1.2 |
0.9 |
|
9 |
Nagler Type6 |
82 |
12.4 |
12 |
2.0 |
1.7 |
1.3 |
0.9 |
0.6 |
|
10 |
Radian |
60 |
10.5 |
20 |
2.2 |
1.9 |
1.4 |
1.0 |
0.7 |
|
11 |
Plossl |
50 |
9.1 |
8 |
2.4 |
2.1 |
1.6 |
1.1 |
0.8 |
|
高倍率の 1 1/4インチアイピース |
|||||||||
|
F.L. |
Type |
App.Field |
F.S.Dia |
Eye.Rel |
F/4.5 |
F/5.2 |
F/7 |
F/10 |
F/14 |
|
7 |
Nagler Type6 |
82 |
9.7 |
12 |
1.6 |
1.3 |
1.0 |
0.7 |
0.5 |
|
7 |
Nagler |
82 |
9.4 |
10 |
1.6 |
1.3 |
1.0 |
0.7 |
0.5 |
|
8 |
Radian |
60 |
8.3 |
20 |
1.8 |
1.5 |
1.1 |
0.8 |
0.6 |
|
5 |
Nagler Type6 |
82 |
7.0 |
12 |
1.1 |
1.0 |
0.7 |
0.5 |
0.4 |
|
4.8 |
Nagler |
82 |
6.6 |
7 |
1.1 |
0.9 |
0.7 |
0.5 |
0.3 |
|
8 |
Plossl |
50 |
6.5 |
6 |
1.8 |
1.5 |
1.1 |
0.8 |
0.6 |
|
6 |
Radian |
60 |
6.3 |
20 |
1.2 |
1.1 |
0.9 |
0.6 |
0.4 |
|
5 |
Radian |
60 |
5.3 |
20 |
1.1 |
1.0 |
0.7 |
0.5 |
0.4 |
|
4 |
Radian |
60 |
4.2 |
20 |
0.9 |
0.8 |
0.6 |
0.4 |
0.3 |
|
3 |
Radian |
60 |
3.3 |
20 |
0.7 |
0.6 |
0.4 |
0.3 |
0.2 |
|
3-6 |
Nagler Zoom |
50 |
2.6-5.1 |
10 |
0.7-1.2 |
0.6-1.1 |
0.4-0.9 |
0.3-0.6 |
0.2-0.4 |
|
記：実視界の度数 = （視野環の直径 ÷ 望遠鏡の焦点距離）×57.3° |
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