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 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 •
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. T (time exposure), however, was available when utilizing the appropriate SQ-series Zenzanon-S/PS lenses which incorporated the time (T) exposure lever function; by default the Zenzanon-PS/B 80mm f/2.8 lens which accompanied the SQ-B model did not include this feature. All SQ-series accessories and lenses were interchangeable with the SQ-B with few exceptions.
GS series •
GS-1: Introduced April 1983, production discontinued June 2002. Lightweight, electronically controlled, modular 6x7 cm medium-format SLR camera system with leaf shutter lenses, four interchangeable viewfinders, speed grip, and optional film-backs for Polaroid Land pack film, 6x4.5 cm, 6x6 cm, and 6x7 cm rollfilm. 120 and 220 size film-backs available in 6x4.5, 6x6 and 6x7 cm. A 35mm film-back was listed in the camera's marketing materials, but never materialized. Dedicated Flash (G1). The GS-1 uses "PG"-series lenses in a variety of focal lengths: 50mm, 65mm, 80mm, 100mm, 110mm macro, 150mm, 200mm, 250mm, and 500mm.
RF series •
RF645: Introduced May 2000, production discontinued September 2005. Extremely light and compact 6x4.5 cm film format coupled
rangefinder camera system with four interchangeable leaf shutter lenses: 45mm, 65mm, 100mm and 135mm. The 135mm Tele Lens soon was discontinued due to calibration problems of the rangefinder-system. Dedicated flash (RF20) and special polarizer kit. ==Further reading==