Photographic objective
F/6,8 F=100,000 mm (30,0°)
[ f/6,8 f=100,334 mm (30,0°) ]
Photographic objective
F/6,8 F=100,000 mm (30,0°)
[ f/6,8 f=100,334 mm (30,0°) ]
N° |
Rayon |
Indice d |
Constringence |
Épaisseur |
0 |
air | ***** |
***** | |
1 |
38,310 | 1,51510 |
56,7 |
2,000 |
2 |
-30,280 | 1,57380 |
41,7 |
1,000 |
3 |
279,700 | air |
***** |
24,322 |
4 |
79,860 | 1,57380 |
41,7 |
1,000 |
5 |
27,610 | air |
***** |
0,500 |
6 |
34,460 | 1,51790 |
60,3 |
2,000 |
7 |
-106,650 | air |
***** |
0,500 |
8 |
-56,350 | 1,51790 |
60,3 |
1,000 |
9 |
71,750 | 1,57380 |
41,7 |
1,000 |
10 |
-222,950 | air |
***** |
o3o-3k4f |
no dioptre diaphragme : 3 | Calcul n° 653
| |||
| Commentaire : GB 1895 24 641 (épaisseurs non fournies) | ||||
| Inventeur : T. Dallmeyer | Maison : Dallmeyer | Date : 1895 | 2/112 | |