Sport

Sport was a Soviet camera model manufactured by the State Optical-Mechanical Factory, commonly abbreviated as GOMZ, in Leningrad. It occupies an important place in photographic history because it was one of the earliest generally available 35mm single-lens reflex cameras and is generally identified as the earliest known production 35mm SLR to reach series manufacture. The camera was developed from an earlier prototype known as the Gelveta, designed and built by A. O. Gelgar between 1934 and 1935. Fewer than 320 Gelveta examples were produced, while the later Sport became the production model. The design emerged from a broader Soviet effort to develop an SLR camera for 35mm film. An earlier Russian SLR concept, the Filmanka, had been designed by A. A. Min as early as 1931. That project was transferred to GOMZ and may have influenced the development of the Gelveta and Sport. The precise public launch date of Sport is uncertain, but the camera was in series production by 1936. Its arrival placed it alongside the German Ihagee Kine Exakta, also introduced in 1936, as one of the first 35mm SLR cameras to become generally available. Sport used a distinctive vertically traveling focal-plane shutter made from two metal plates. Exposure was controlled by the width of the slit formed as the plates moved, with shutter settings reported from 1/25 to 1/500 second together with a bulb setting. The reflex mirror rose rapidly and did not return automatically after the exposure. Unlike many later SLRs, the camera’s combined shutter-speed dial and film-wind knob did not rotate during shutter operation. Film was transported from one cassette to another, and the camera did not provide a rewind mechanism. A pair of original cassettes could accommodate enough film for approximately fifty exposures, while a manually reset frame counter was positioned at the base of the wind-on knob. The camera offered both a vertical eye-level viewing arrangement focused on a ground-glass screen and an integral direct-vision action finder. Its base and back formed a removable assembly that had to be taken off for film loading. Sport was designed around interchangeable bayonet-mounted lenses, although the Industar I-10 50 mm f/3.5 lens appears to have been the only lens supplied as a regular option. The bayonet arrangement incorporated the focusing helical mechanism and an infinity catch, and its general form was similar to the lens mount used on the Zeiss Ikon Contax. The camera is readily identifiable by the Cyrillic name engraved on the finder housing above the lens, along with the GOMZ prism emblem in gold and black on the front of the top housing. Most bodies lack a conventional serial number; the lens serial number is therefore often used by collectors to identify individual examples. Production continued until the siege of Leningrad began in September 1941. The factory and city suffered severe wartime damage, and an estimated 19,000 Sport cameras had been made before production was interrupted. The design was not subsequently continued as a long-running camera platform. Today, Sport is primarily of interest as a historically significant Soviet camera and an early milestone in the development of 35mm SLR photography rather than as an active consumer brand.

The origins of Sport lie in Soviet experimentation with 35mm single-lens reflex photography during the early 1930s. A. A. Min designed the Filmanka SLR in Russia as early as 1931. The project was transferred to GOMZ, the State Optical-Mechanical Factory in Leningrad, where it may have provided technical or conceptual inspiration for later development. A. O. Gelgar subsequently designed and built a prototype camera called Gelveta between 1934 and 1935. Gelveta is regarded as the direct predecessor of Sport. Fewer than 320 prototype examples were made, but the design was developed into a series-production camera at GOMZ under the name Sport. The exact launch date is not firmly established; surviving historical accounts place the camera in series production by 1936. This makes it one of the two earliest generally available 35mm SLR cameras, alongside the German Ihagee Kine Exakta, which also appeared in 1936. Sport used a technically distinctive construction. Its focal-plane shutter consisted of two metal plates that formed a vertically rising slit. The slit width determined the exposure, with settings ranging from 1/25 to 1/500 second and a bulb mode. The reflex mirror rose quickly and remained raised after exposure rather than returning automatically. Film moved from one cassette to another, eliminating the need for a rewind mechanism but requiring a removable base and back for loading. The camera included a ground-glass viewing system and a built-in direct-vision action finder. It accepted bayonet-mounted lenses, although the regular lens associated with the model was the Industar I-10, a 50 mm f/3.5 lens. The physical design included several features that distinguish surviving examples. The shutter-speed control and wind-on knob were combined on the right side and remained stationary during exposure. A manually reset frame counter was located at the base of the winding knob. The lens mount incorporated the focusing helix and an infinity catch, and its configuration was broadly comparable to the mount used by the Zeiss Ikon Contax. The name Sport was engraved in Cyrillic as “Спорт” on the finder housing. GOMZ identification appeared through a circular magnifying window on the upper front of the camera, displaying the factory’s prism logo and initials. GOMZ produced the camera in Leningrad until the Second World War disrupted the factory. An estimated 19,000 examples were manufactured before the siege of Leningrad began in September 1941. The city and factory sustained heavy damage, and the Sport design was not continued as a later product line. Its production history therefore ended relatively early, but its significance increased over time as photographic historians and collectors recognized it as a pioneering Soviet 35mm SLR. Sport remains principally a historical and collectible camera, representing an early attempt to bring the reflex format to a series-produced 35mm platform.

• 1941

  Production disrupted by the siege of Leningrad

  [1]Sport (camera)en.wikipedia.org

  The siege of Leningrad began in September 1941, after which GOMZ suffered heavy damage. Approximately 19,000 Sport cameras are estimated to have been produced before the interruption.

• 1936

  Sport enters series production

  [1]Sport (camera)en.wikipedia.org

  GOMZ was producing the Sport in series by 1936, making it one of the earliest generally available 35mm SLR cameras.

• 1935

  Gelveta prototype completed

  [1]Sport (camera)en.wikipedia.org

  Gelgar’s Gelveta design was completed after development during 1934–1935. Fewer than 320 examples were made.

• 1934

  Gelveta prototype development begins

  [1]Sport (camera)en.wikipedia.org

  A. O. Gelgar began developing the Gelveta prototype, the immediate predecessor of the production Sport camera.

• 1931

  Filmanka SLR concept developed

  [1]Sport (camera)en.wikipedia.org

  A. A. Min designed the Filmanka, an early Russian 35mm SLR concept later transferred to GOMZ and considered a possible influence on the Sport development.

An early Soviet precision camera positioned as a practical 35mm SLR, notable for combining reflex viewing, interchangeable-lens capability, and a focal-plane shutter before the format became widespread.

• 35mm single-lens reflex camera · 1936

  Sport

  The main series-production model derived from the Gelveta prototype. Sport used 35mm film, a vertically traveling two-plate focal-plane shutter with speeds from 1/25 to 1/500 second plus bulb, a quick-rising non-returning reflex mirror, interchangeable bayonet lens mounting, a ground-glass viewing system, and a built-in direct-vision action finder. Film was transferred between cassettes without a rewind mechanism.

• 35mm single-lens reflex prototype · 1935

  Gelveta

  Gelveta was the prototype from which the production Sport was developed. Designed and built by A. O. Gelgar between 1934 and 1935, it was produced in fewer than 320 examples and is treated as the developmental predecessor rather than the principal commercial model.

• Interchangeable camera lens

  Industar I-10

  The Industar I-10 was the regular lens associated with the Sport camera. It had a 50 mm focal length and a maximum aperture of f/3.5. Although Sport was designed to accept interchangeable bayonet-mounted lenses, the I-10 was reported as the only lens available for the model.

1. 1Sport (camera)en.wikipedia.org