Ektar
F/3,5 F=100,000 mm (55,0°)
[ f/3,5 f=99,653 mm (55,0°) ]
Ektar
F/3,5 F=100,000 mm (55,0°)
[ f/3,5 f=99,653 mm (55,0°) ]
N° |
Rayon |
Indice d |
Constringence |
Épaisseur |
0 |
air | ***** |
***** | |
1 |
30,000 | 1,62000 |
60,4 |
5,000 |
2 |
386,000 | air |
***** |
5,520 |
3 |
-77,700 | 1,57500 |
41,4 |
3,720 |
4 |
25,900 | air |
***** |
6,880 |
5 |
81,200 | 1,63700 |
56,1 |
7,990 |
6 |
-20,900 | 1,52300 |
50,5 |
2,000 |
7 |
-113,700 | air |
***** |
o3o-3k4f |
no dioptre diaphragme : 4 | Calcul n° 490
| |||
| Commentaire : US 2 165 328 I | ||||
| Inventeur : G. H. Aklin & F. E. Altman | Maison : Kodak | Date : 1939 | 11/2 | |