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F/1,3    F=100,000 mm    (30,0°)
[ f/1,3    f=100,987 mm    (30,0°) ]
| N° | Rayon | Indice d | Constringence | Épaisseur | 
| 0 | air | ***** | ***** | |
| 1 | 96,600 | 1,62400 | 58,2 | 8,910 | 
| 2 | 324,070 | air | ***** | 0,446 | 
| 3 | 71,320 | 1,62400 | 58,2 | 19,611 | 
| 4 | -99,840 | 1,62190 | 36,1 | 5,348 | 
| 5 | 445,720 | air | ***** | 11,143 | 
| 6 | -108,760 | 1,62420 | 58 | 10,697 | 
| 7 | -40,830 | 1,56730 | 42,9 | 5,349 | 
| 8 | 33,960 | air | ***** | 12,034 | 
| 9 | 62,850 | 1,54070 | 47,3 | 4,457 | 
| 10 | 54,730 | 1,62400 | 58,2 | 12,480 | 
| 11 | -69,710 | air | ***** | o3o-3k4f | 
|  no dioptre diaphragme : 5 | Calcul n° 169
 | |||
| Commentaire : Us 1 899 934 II (diaph B) | ||||
| Inventeur : Max Berek | Maison : E. Leitz | Date : 1931 | 12/22 | |