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|French companies ( )|
|Alsaphot | Angénieux | Arca Swiss | As de Trèfle | Atoms | Aubertin | Balcar | Bardin | Bauchet | Baudry | Bellieni | Berthiot | Boumsell | Boyer | Bronzavia | Cord | Cornu | Coronet | Darlot | DeMaria-Lapierre | FAP | Fex | Compagnie Française de Photographie | Gallus | Gaumont | Georges Paris | Girard | Gitzo | Goldstein | Héard & Mallinjod | Hermagis | Idam | Itier | Kafta | Kinax | Krauss | Lumière | Mackenstein | Manufrance | Mazo | MFAP | MIOM | Mollier | Mundus | Olbia | Omega | OPL | Pierrat | Précidès | Richard | Roussel | Royer | SEM | Secam | SIAP | Spirotechnique | Tiranty | Vergne | Zion (France)|
H. Roussel, Opticien-Fabricant was a lens maker in Paris. In the early 20th century it advertised its symmetric lens constructions, for example double triplet lenses. The effect of those constructions against chromatic aberration was called anti-spectroscopique. Later, in the 1930s, P. Roussel was named as constructor of the lenses on the company's lens list. At that time Roussel's lens names were Trylor and Stylor. Enlarging lenses marked "H.Roussel Trylord" are a scarce find:
Les càmeres amb lent H. RousselEdit
- Boumsell Blau
- Olbia pseudo TLR
- Pontiac Lynx Roussel
- Pontiac Nadó estàndard
- Pontiac Bloc Metall 45, Bloc Métal 45sa
- Pontiac Métal bloc 41
Text Original: Mostra traduccions alternatives----