BIOTAR
F/1,8 F=100,000 mm (25,0°)
[ f/1,8 f=107,123 mm (25,0°) ]
BIOTAR
F/1,8 F=100,000 mm (25,0°)
[ f/1,8 f=107,123 mm (25,0°) ]
N° |
Rayon |
Indice d |
Constringence |
Épaisseur |
0 |
air | ***** |
***** | |
1 |
63,100 | 1,51579 |
***** |
12,900 |
2 |
-132,000 | air |
***** |
2,900 |
3 |
-93,800 | 1,71543 |
***** |
3,700 |
4 |
-371,400 | air |
***** |
27,200 |
5 |
58,800 | 1,71543 |
***** |
3,700 |
6 |
42,400 | air |
***** |
6,600 |
7 |
75,700 | 1,51579 |
***** |
12,900 |
8 |
-176,500 | air |
***** |
52,070 |
9 |
-42,000 | 1,51630 |
***** |
1,900 |
10 |
Dpt. plan | air |
***** |
o3o-3k4f |
no dioptre diaphragme : 4 | Calcul n° 422
| |||
| Commentaire : Lac. p.279 (avec r9=-27.20 et dist. diaph = 27.2) | ||||
| Inventeur : M. von Rohr | Maison : _/_ | Date : 1911 | 11/111 | |