New Linear Landscape Lens de Dallmeyer
F/17,6 F=100,000 mm (34,0°)
[ f/17,6 f=100,399 mm (34,0°) ]
New Linear Landscape Lens de Dallmeyer
F/17,6 F=100,000 mm (34,0°)
[ f/17,6 f=100,399 mm (34,0°) ]
N° |
Rayon |
Indice d |
Constringence |
Épaisseur |
0 |
air | ***** |
***** | |
1 |
20,600 | 1,57400 |
***** |
0,500 |
2 |
11,000 | 1,51460 |
***** |
1,200 |
3 |
23,700 | air |
***** |
2,000 |
4 |
-42,500 | 1,51710 |
***** |
0,500 |
5 |
-24,700 | air |
***** |
o3o-3k4f |
no dioptre diaphragme : 1 | Calcul n° 206
| |||
| Commentaire : von Rohr, p230 nº91, tur nº74 p116 | ||||
| Inventeur : Dallmeyer | Maison : Dallmeyer | Date : 1888 | /21 | |