EKTAR
F/2,3 F=100,000 mm (50,0°)
[ f/2,3 f=99,773 mm (50,0°) ]
EKTAR
F/2,3 F=100,000 mm (50,0°)
[ f/2,3 f=99,773 mm (50,0°) ]
N° |
Rayon |
Indice d |
Constringence |
Épaisseur |
0 |
air | ***** |
***** | |
1 |
40,100 | 1,61100 |
57 |
7,000 |
2 |
84,400 | air |
***** |
1,400 |
3 |
31,600 | 1,61100 |
57 |
6,700 |
4 |
292,000 | 1,57300 |
43 |
1,900 |
5 |
21,600 | air |
***** |
14,600 |
6 |
-29,900 | 1,61700 |
37 |
2,000 |
7 |
102,000 | 1,74500 |
46 |
5,300 |
8 |
-41,600 | air |
***** |
7,200 |
9 |
-441,000 | 1,75500 |
47 |
4,400 |
10 |
-57,100 | 1,57500 |
41 |
2,000 |
11 |
-99,500 | air |
***** |
o3o-3k4f |
no dioptre diaphragme : 5 | Calcul n° 20
| |||
| Commentaire : Lac. nº174 p273 | ||||
| Inventeur : G. Aklin | Maison : Kodak | Date : 1941 | 12/22 | |