|AFR | Alsaphot | André and Lieutier | Angénieux | Arca Swiss | As de Trèfle | Atoms | Aubertin | Balcar | Bardin | Bauchet | Baudry | Bellieni | Berthiot | Boumsell | Boyer | Bronzavia | Cindo | Cord | Cornu | Coronet | Darlot | Demaria-Lapierre | Derogy | Faller | FAP | Fex | Français | Compagnie Française de Photographie | Gallus | Gaumont | Georges Paris | Girard | Gitzo | Goldstein | Héard & Mallinjod | Hermagis | Idam | Itier | Jousset | Joux | Kafta | Kinax | Kodak Pathé | Krauss | Lumière | Lund | Mackenstein | Manufrance | MAPED | Mazo | MFAP | MIOM | Mollier | Mundus | Olbia | Omega | OPL | Pierrat | Richard | Richard (Jules) | Roussel | Royer | SEM | Secam | SIAP | Soulé | Spirotechnique | Tiranty | Vergne | Zion (France)|
Boyer was a French optical company based in Paris. It was founded in 1885 by Antoine Boyer, then sold in 1925 to André Levy (1890-1965), a former sales manager at the Lacour-Berthiot company. His wife, Suzanne Lévy-Bloch (1894-1974), was a brilliant mathematician and optician, graduated from the École Supérieure d'Optique where she attended Henri Chrétien's classes. From then on, she was the chief designer of the Boyer lenses (according to D. Fromm and E. Beltrano). After bankruptcy at the beginning of the 1970s, the factory was bought out by M. Kiritis and the former owner of the Roussel optical company. It lasted a decade more with reduced workforce and production, then definitively closed in 1982.
Some brands that were used on Boyer lenses:
- Optiques Boyer: Une brève histoire de l'entreprise et un catalogue (incomplet) des objectifs produits ("A Short History of the Company and an Incomplete Catalogue of the Lenses produced") by D. Fromm and E. Beltrano at 
Optiques Boyer: A short history of the company with an incomplete catalog of its lenses by D. Fromm and E. Beltrano at