Difference between revisions of "Sankyō Kōki"

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===Komura  39mm Leica/Canon RF mount lenses===
 
===Komura  39mm Leica/Canon RF mount lenses===
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|image_source= http://www.flickr.com/photos/uwe_kulick/5701345634/in/pool-camerawiki/
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|image= http://farm4.staticflickr.com/3592/5701345634_2518cd12de_m.jpg
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|image_align= right
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|image_text= Komura 135mm f/3.5 RF lens
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|image_by= uwekulick
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* 28mm f/3.5, 48mm filter size, RF-coupled
 
* 28mm f/3.5, 48mm filter size, RF-coupled
 
* 35mm f/2.8, 43mm filter size, RF-coupled
 
* 35mm f/2.8, 43mm filter size, RF-coupled
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* 36mm f/1.8
 
* 105mm f/2.0, 58mm filter size, RF-coupled
 
* 105mm f/2.0, 58mm filter size, RF-coupled
 
* 105mm f/2.5, 48mm filter size, RF-coupled
 
* 105mm f/2.5, 48mm filter size, RF-coupled
 
* 135mm f/2.8, 55mm filter size, RF-coupled
 
* 135mm f/2.8, 55mm filter size, RF-coupled
* 135mm f/3.5, 48mm filter size, RF-coupled
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* 135mm f/3.5, 48mm filter size, RF-coupled (ex sn: 211256)
 
* 200mm f/3.5, 62mm filter size
 
* 200mm f/3.5, 62mm filter size
 
* 200mm f/4.5, 55mm filter size, RF-coupled
 
* 200mm f/4.5, 55mm filter size, RF-coupled
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===Komura Unidapter preset lenses===
 
===Komura Unidapter preset lenses===
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|image_source= http://www.flickr.com/photos/nesster/4784425324/in/pool-camerawiki/
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|image= http://farm5.staticflickr.com/4115/4784425324_1f079abf15_m.jpg
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|image_align= right
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|image_text= Komura 135mm f/2.3 Unidapter
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|image_by= Nesster
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* 28mm f/3.5, 55mm filter size
 
* 28mm f/3.5, 55mm filter size
 
* 35mm f/2.5, 55mm filter size
 
* 35mm f/2.5, 55mm filter size
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* 105mm f/2.5, 48mm filter size
 
* 105mm f/2.5, 48mm filter size
 
* 135mm f/2.0, 72mm filter size (ex sn: 67053)
 
* 135mm f/2.0, 72mm filter size (ex sn: 67053)
* 135mm f/2.3, 62mm filter size
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* 135mm f/2.3, 62mm filter size (ex sn: 3252460)
 
* 135mm f/2.8, 55mm filter size
 
* 135mm f/2.8, 55mm filter size
 
* 135mm f/3.5, 48mm filter size
 
* 135mm f/3.5, 48mm filter size
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===Komura lenses for Bronica C and S-2===
 
===Komura lenses for Bronica C and S-2===
* 50mm f/3.5, auto, filter size 77mm
 
* 100mm f/2.8, auto, filter size 62mm
 
 
* 135mm f/2.3, preset, filter size 72mm
 
* 135mm f/2.3, preset, filter size 72mm
* 150mm f/3.5, auto, filter size 67mm
 
* 135mm f/2.3, filter size 72mm
 
* 200mm f/3.5, auto, filter size 67mm
 
 
* 200mm f/3.5, preset, filter size 67mm
 
* 200mm f/3.5, preset, filter size 67mm
 
* 300mm f/5.0, preset, filter size 67mm
 
* 300mm f/5.0, preset, filter size 67mm
 
* 400mm f/6.3, preset, filter size 67mm
 
* 400mm f/6.3, preset, filter size 67mm
 
* 500mm f/7.0, preset, filter size 77mm
 
* 500mm f/7.0, preset, filter size 77mm
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===Super-Komura lenses for Bronica C and S-2===
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{{Flickr_image
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|image_source= http://www.flickr.com/photos/61379426@N05/6907545097/in/pool-camerawiki/
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|image= http://farm8.staticflickr.com/7044/6907545097_8cefe788bd_m.jpg
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|image_align= right
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|image_text= Super-Komura 50mm f/3.5<br/>for Bronica S-2
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|image_by= joanseda
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* 50mm f/3.5, auto, filter size 77mm
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* 135mm f/2.3, auto, filter size 72mm
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* 100mm f/2.8, auto, filter size 62mm
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* 150mm f/3.5, auto, filter size 67mm
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* 200mm f/3.5, auto, filter size 67mm
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===Komura lenses for 4x5 Cameras===
 
===Komura lenses for 4x5 Cameras===
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===Other Komura Lenses===
 
===Other Komura Lenses===
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* Super-W-Komura 90mm f/6.3 (ex sn: 537573), badged Komura Lens Mfg. Ltd
 
* see also [[39mm screw lenses#Sankyō Kōki / Komura)|Komura lenses in 39mm screw mount]]
 
* see also [[39mm screw lenses#Sankyō Kōki / Komura)|Komura lenses in 39mm screw mount]]
 
* see also [[42mm screw lenses#Sankyō Kōki / Komura)|Komura lenses in 42mm screw mount]]
 
* see also [[42mm screw lenses#Sankyō Kōki / Komura)|Komura lenses in 42mm screw mount]]

Revision as of 03:30, 8 April 2012

Sankyō Kōki K.K. (三協光機㈱) was a Japanese optical company which used the brand name Komura.

See also Sankyō Kōgaku for a similarly named Japanese lens maker.

History

Sankyō Kōki K.K. (三協光機㈱) was a Japanese optical company, which used the brand name Komura for a variety of lenses. The company's name usually appeared as Sankyo Kohki on English language product branding such as lens badges. However in English language trademark filings, the more conventional spelling of Sankyo Koki Co., Ltd. was often used.

The company was already active in the early 1950s. Before the use of the Komura brand, it used the brand name Chibanon or Chibanone, notably supplying lenses to the Tōsei Kōki company. The Chibanon brand was retained for some time on enlarging lenses and projection lenses.[1]

In 1962 the company registered Komura as a US Trademark. The filing indicates that Komura was first used as a brand name in 1953.[2] At the time of this filing the company's address is listed as:

Sankyo Koki Co., Ltd.
69 Kita-Inaricho
Taito-ku, Tokyo, Japan

In the 1970s, the company developed the Komura Unidapter System that allowed their 35mm interchangeable lenses to mount to "practically all Japanese-made and a number of European-made reflexes - as well as 16mm cine cameras with C mount"[3] Komura Unidapter adapters known to exist include Canon FL, Exakta, M42 (Pentax/Practica), Miranda Sensorex, Nikon F, Minolta, Ricoh Singlex, Petri, and Topcon D-1.

By the mid 1970s, the company changed it's name to Komura Lens Manufacturing, Ltd. In 1975 the company registered Telemore as a trademark. The filing indicates that Telemore was first used in commerce in 1969.[4] In 1976 they registered Komuranon as a trademark. The filing indicates Komuranon was first used in commerce in 1973.[5] At the time of the US trademark filings, the company's address is listed as:

Komura Lens Mfg., Ltd.
17-3, Kasuga 2-chome
Bunkyo-Ku, Tokyo, Japan

The Komura company became insolvent in 1980 and in 1981 was reported to be in acquisition talks with a "large binocular manufacturer".[6] The outcome is unknown, however, all trademarks owned by the company subsequently expired, suggesting the company did not survive.

Lenses

Chibanon / E-Chibanon lenses

Chibanon or E-Chibanon[7] lenses for enlargement or general photography:

    • 50mm f/3.5, three or four elements, 1954–5[8][9][10]
  • 50mm f/2.8, five elements, 1954–5[8][9]
  • 75mm f/3.5, three or four elements, 1954–5[8][9]
  • 80mm f/3.5, three or four elements, 1954–5[8][9]
  • 80mm f/2.8, four elements, announced in 1955[8]
  • 105mm f/3.5, manufactured on demand, 1955[8]

Cameras equipped with early lenses by Sankyō Kōki:

  • some examples of the Semi Frank have an E. Chibanone lens (an early spelling variant);
  • Chibanon or Chibanone (チバノン) lenses were advertised on the Copenflex and Sanon Six;
  • another lens perhaps called Chibar (チバー) was advertised on the Sanon Six II.

Komura T mount and fixed-mount lenses

  • 85mm f/1.4 preset T mount
  • 85mm f/1.4 preset Nikon mount
  • 100mm f/1.8 preset T mount
  • 105mm f/2.0 preset T mount (ex sn: 3352534)
  • 200mm f/4.5

Komura 39mm Leica/Canon RF mount lenses

  • 28mm f/3.5, 48mm filter size, RF-coupled
  • 35mm f/2.8, 43mm filter size, RF-coupled
  • 36mm f/1.8
  • 105mm f/2.0, 58mm filter size, RF-coupled
  • 105mm f/2.5, 48mm filter size, RF-coupled
  • 135mm f/2.8, 55mm filter size, RF-coupled
  • 135mm f/3.5, 48mm filter size, RF-coupled (ex sn: 211256)
  • 200mm f/3.5, 62mm filter size
  • 200mm f/4.5, 55mm filter size, RF-coupled
  • 300mm f/5.0, 62mm filter size
  • 400mm f/6.3, 67mm filter size
  • 500mm f/7.0, 77mm filter size

Komura Unidapter preset lenses

  • 28mm f/3.5, 55mm filter size
  • 35mm f/2.5, 55mm filter size
  • 85mm f/1.4, 67mm filter size
  • 100mm f/1.8, 62mm filter size (ex sn: 65508)
  • 105mm f/2.0, 58mm filter size (ex sn: 68317)
  • 105mm f/2.5, 48mm filter size
  • 135mm f/2.0, 72mm filter size (ex sn: 67053)
  • 135mm f/2.3, 62mm filter size (ex sn: 3252460)
  • 135mm f/2.8, 55mm filter size
  • 135mm f/3.5, 48mm filter size
  • 200mm f/3.5, 62mm filter size
  • 300mm f/5.0, 62mm filter size
  • 400mm f/6.3, 67mm filter size
  • 500mm f/7.0, 77mm filter size

Super-Komura Auto Unidapter lenses

  • 24mm f/3.5, filter size 52mm
  • 28mm f/3.5, filter size 52mm
  • 35mm f/2.5, filter size 55mm
  • 100mm f/2.5, filter size 55mm
  • 135mm f/2.8, filter size 55mm
  • 200mm f/3.5, filter size 62mm
  • 300mm f/5.0, filter size 62mm (ex sn: 338100)
  • 75-150mm f/4.5 Zoom, filter size 58mm
  • 90-250mm f/4.5 Zoom, filter size 62mm

Komura Auto Fixed-Mount lenses

  • 135mm f/2.8, filter size 55mm
  • 200mm f/3.5, filter size 62mm
  • 300mm f/5.0, filter size 62mm
  • 75-150mm f/4.5 Zoom, filter size 58mm

Komura lenses for Bronica C and S-2

  • 135mm f/2.3, preset, filter size 72mm
  • 200mm f/3.5, preset, filter size 67mm
  • 300mm f/5.0, preset, filter size 67mm
  • 400mm f/6.3, preset, filter size 67mm
  • 500mm f/7.0, preset, filter size 77mm

Super-Komura lenses for Bronica C and S-2

  • 50mm f/3.5, auto, filter size 77mm
  • 135mm f/2.3, auto, filter size 72mm
  • 100mm f/2.8, auto, filter size 62mm
  • 150mm f/3.5, auto, filter size 67mm
  • 200mm f/3.5, auto, filter size 67mm


Komura lenses for 4x5 Cameras

  • 75mm f/6.3, filter size 72mm
  • 152mm f/2.8, filter size 77mm
  • 300mm f/5.0, filter size 67mm
  • 400mm f/6.3, filter size 67mm
  • 500mm f/7.0, filter size 77mm

Komura lenses for 4x5 and 6x9 Cameras

  • 152mm f/3.5, filter size 67mm
  • 300mm f/6.3, filter size 67mm
  • 400mm f/8.0, filter size 67mm

Komura lenses for 6x9 Cameras

  • 47mm f/6.3, filter size 67mm

Other Komura Lenses

Komuranon lenses

  • KMC Komuranon 28mm f/2.5
  • KMC Komuranon 135mm f/2.5
  • KMC Komuranon 200mm f/3.5
  • KMC Komuranon 300mm f/4.5
  • KMC Komuranon 35-70mm f/3.5-4.5 Zoom
  • KMC Komuranon 75-150mm f/4.5 Macro Zoom

Telemore lenses

Telemore 2x Tele-converter

Other products

  • Permanent cable release, 1953:[11]
    • standard model, ¥150
    • for Leica, ¥200


Notes

  1. Projection lenses: example observed in an online auction.
  2. US Trademark filing for Komura
  3. [International Federation of Photographic Art, Issues 7-12, p 68]
  4. US Trademark filing for Telemore
  5. US Trademark filing for Komuranon
  6. [British Journal of Photography, 1981, Vol 128, p. 464]
  7. The Roman spelling "Chivanon" found in original advertisements has not been observed on actual products, and was certainly mistaken.
  8. 8.0 8.1 8.2 8.3 8.4 8.5 Advertisement in Asahi Camera January 1955, p.234, February 1955, p.167, March 1955, p.213, and April 1955, p.224.
  9. 9.0 9.1 9.2 9.3 Advertisement dated 1954 reproduced at Shashin-Bako.
  10. E-Chibanon 50mm f/3.5 lens observed in an online auction, black and chrome barrel with knurled aperture ring.
  11. Advertisements in Asahi Camera October 1953, p.222, and November 1953, p.198.

Bibliography

  • Asahi Camera. Advertisements by Sankyō Kōki:
    • October 1953, p.222;
    • November 1953, p.198;
    • January 1955, p.234;
    • February 1955, p.167;
    • March 1955, p.213;
    • April 1955, p.224.

Links

In Japanese: