Adams & Westlake
Agfa
Aiken-Gleason
Alpa
Angenieux
Ansco
E & H Anthony
Apparate und Kammerabau
Arca Swiss
Arco
Arriflex (Arnold & Richter)
Bach Auricon
Balda
Bausch & Lomb
Bell & Howell
Blair Camera Co.
Bogen/Manfrotto
Bolex
Bolsey
Braun
Bronica
Brooks
Burke & James
Busch Precision Camera
W. Butcher & Sons
Cambo
Canon
Century Camera Co.
Century Precision Optics
Cinema Products (CPC)
Compass
Concava
Coronet
Deardorff
Debrie (Sept)
Doi Works Co
Durst
Eclair
Elmo
Ensign
Ernemann
Erscam (Camex)
Expo Camera Co.
Fotofex
Frezzolini
Fuji Photo Film
Galileo (Officine Galileo)
Gassner & Marx
Gaumont
GE
General Camera Corp.
Gennert
Gitzo
C.P.Goerz NY
C.P.Goerz London
Gorden Enterprises (Cine Rental Catalogs)
Gossen
Graflex (Folmer & Schwing)
Gundlach
H & R Optical Systems
Hasselblad
Honeywell
Houghton
Hulcher
ICA
Ilford
Ihagee (Exakta)
Ilex Optical Co.
I.S.O. (Industria Scientifica Ottica SRL)
Kilfitt
Kinoptik
Kochmann
Kodak
Konishiroku/Konica
Kowa
Kozy Camera Company
G,A.Krauss, Germany
Leica (E. Leitz)
Linhof
Loeber Bros.
Lumiere
Mamiya
Micro Precision Products (M.P.P.)
Miller Professional Equipment
Minolta
Minox
Miranda
Mitchell
Multiscope & Film Co.
Nettel Camerawerk
Nicca
Nikon (Nippon Kogaku)
Novoflex
O'Connor
Olympus
Pathe
Pentax (Asahi)
Polaroid (Land)
Quantum Instruments
Ray Camera Co.
Richter Cine Equipment
Robot (Berning)
Rochester Camera Co.
Rochester Optical Co.
Rochester Optical & Camera Co.
Rodenstock
Rollei (Franke & Heidecke)
Ross Ensign
Sawyers
Schneider
SEI
Sekonic
S.E.M. (Societe des Etablissements Modernes)
Seneca
Sida
Simmons Brothers
Sinar
Sunart Photo Co.
Tamrac
Taylor, Taylor & Hobson
Thornton-Pickard
Topcon (Tokyo Optical)
Toyo
Victor Animatograph Co.
Vives
Vivitar
Voigtlander
Welta
White (Realist)
Wista
Wollensak
Yashica (Yashima)
Zeiss Ikon
Zoomar