Photographic Manufacturers
Bogen Canon Europa NV Canon USA Contax Eastman Kodak Fuji Film USA Fuji Film Japan Hasselblad Ilford Konica Leica Germany Linhof Mamiya Nikon Japan Nikon USA OER Inc. Olympus (USA) Pentax PMA (Photo Marketing Association International)
Polaroid Quantum Instruments Inc. Ricoh Japan Sigma Tamron/Bronica Tocad (Sunpak/Slik) Yashica ZTS Inc.