thumb|Zenza Bronica ETRS camera, with Bronica Zenzanon EII 75mm f2.8 lens
Bronica also Zenza Bronica (in Japanese: ) was a Japanese manufacturer of classic medium-format roll film cameras and photographic equipment based in Tokyo, Japan. Their single-lens reflex (SLR) system-cameras competed with Pentax, Hasselblad, Mamiya and others in the medium-format camera market.
History
Before introduction of the first of what would become a dynasty of Zenza Bronica cameras in 1959, the Latinized Zenza Bronica name was already a popular Japanese luxury goods brand of the Shinkodo Works (in Japanese: ) since 1947, specialized in the production of intricate crafted and decorated personal accessories, such as metal cigarette lighters and cases, cosmetic compacts, and watches, of diverse styles and designs. which at first produced Bronica brand luxury art deco accessories such as cigarette lighters and cases including watches, and positioned Bronica as a luxury brand in Japanese department stores, with popularity thriving among US Army soldiers in Japan. On 17 January 1952, the Shinkodo Works was directed by Yoshino to begin research and development of the Bronica prototype camera. and successor Bronicas, using large-coverage film format, high-quality Nikkor lenses supplied by the then Japan Optical Industries Co., Ltd., Such was the design success of Bronica, that in the United States it attracted influential figures from the photographic industry such as Burt Keppler who met with Yoshino. Bronica later introduced optics and lens units of its own manufacture incorporating Seiko shutters with its later camera designs and held a portfolio of international patents.
Acquisition and product discontinuation
Bronica was eventually acquired by the lens manufacturer Tamron Co., Ltd., in 1998 with emphasis on Bronica's optical lens manufacturing. In May 2000, Tamron introduced under the Bronica brand the RF645 rangefinder camera. sales having suffered from the lack of consideration to a digital camera back and loss of market share to digital photography and digital single-lens reflex (DSLR) cameras, particularly for the wedding and portrait photography business which had previously been a heavy user of medium-format photographic film but switched quickly to digital photography for its commercial workflow benefits. Bronica's last model, the RF645 rangefinder camera, was discontinued in September 2005, and marked the termination of the Bronica camera brand business.
Bronica models
Bronica SLR system-cameras employed a modular design: The major components of the camera—lens, body, film-back and viewfinder were separate and interchangeable, providing options to match the specific photography or workflow needs of the photographer.
Classic models
thumb|Classic Zenza Bronica S2 with Zenzanon 100mm f2.8 lens
From its start, Bronica introduced a number of 6x6 cm medium-format SLR cameras with focal plane shutter, which used Nikkor lenses from Nikon,), while the EC-TL was the first medium-format camera with Aperture priority automatic exposure (AE).
The range of Nikkor lenses for these remarkable cameras reached from 30mm (fisheye) to 1200mm and comprised about 30 lenses. Lens optics supplied by Carl Zeiss in Jena, Tokyo Optical Co., Ltd., Norita optics, Komura-Komuranon (Sankyo Kohki), Schneider Kreuznach, as well as lens optics later manufactured by Bronica itself (Zenzanon) based on designs by Zeiss and Japanese lens manufacturers were available, as well as a wide range of accessories, including different film magazines, bellows, and viewfinders.
ETR series
thumb|Zenza Bronica ETRS with Zenzanon EII 75mm f2.8 lens
thumb|ETRSi 40th anniversary edition in champagne metallic colour, with manual shutter-release handgrip and metered prism viewfinder attached, released 9 May 1999
- ETR: Introduced March 1976,
- SQ-B (Basic): Thus, motorized film-advance and through-the-lens metering (TTL) functionality were not present, as well as B (bulb exposure), as found on other SQ-series models.