Difference between revisions of "Kaitenkei"
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{{Japanese cine film subminiature}} | {{Japanese cine film subminiature}} | ||
| − | The '''Kaitenkei''' (回転計, meaning "revolution counter") is a Japanese [[spy camera]] | + | The '''Kaitenkei''' (回転計, meaning "revolution counter") is a Japanese [[spy camera]] made by [[Tōkyō Kōgaku]] in the late 1930s. |
| − | The Kaitenkei reportedly takes ten exposures on 8mm cine film, has a 13.9mm f/2.8 lens and a guillotine shutter with a single speed setting (1/50).<REF> Baird, p.71; Antonetto and Russo, p.23 | + | The camera was reportedly developed in 1937, on request from the Army Science Institute.<REF> Baird, p.71; Antonetto and Russo, p.23. </REF> It is said that it was inspired by a contemporary German spy camera,<REF> Antonetto and Russo, p.195. </REF> but the Kaitenkei resulted more expensive,<REF> Baird, p.71; Antonetto and Russo, p.23. </REF> and only a few were made for that reason.<REF> Baird, p.71. Antonetto and Russo, p.23, say that the camera was not accepted by the Army. </REF> |
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| + | The Kaitenkei is shaped as a matchbox, 32.5×24×15mm in size.<REF> Baird, p.71. </REF> It reportedly takes ten exposures on 8mm cine film, has a 13.9mm f/2.8 lens and a guillotine shutter with a single speed setting (1/50).<REF> Baird, p.71; Antonetto and Russo, p.23. </REF> | ||
At least one [[Japanese matchbox camera]] is known to exist today; it is not known if it was related to the Kaitenkei. | At least one [[Japanese matchbox camera]] is known to exist today; it is not known if it was related to the Kaitenkei. | ||
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== Bibliography == | == Bibliography == | ||
| − | * {{Antonetto Russo}} | + | * {{Antonetto Russo}} Pp.23 and 195. |
* {{Baird Japanese}} P.71. | * {{Baird Japanese}} P.71. | ||
[[Category: Japanese 8mm film]] | [[Category: Japanese 8mm film]] | ||
| + | [[Category: Spy camera]] | ||
[[Category: Topcon]] | [[Category: Topcon]] | ||
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[[Category: K]] | [[Category: K]] | ||
Revision as of 12:58, 10 September 2010
The Kaitenkei (回転計, meaning "revolution counter") is a Japanese spy camera made by Tōkyō Kōgaku in the late 1930s.
The camera was reportedly developed in 1937, on request from the Army Science Institute.[1] It is said that it was inspired by a contemporary German spy camera,[2] but the Kaitenkei resulted more expensive,[3] and only a few were made for that reason.[4]
The Kaitenkei is shaped as a matchbox, 32.5×24×15mm in size.[5] It reportedly takes ten exposures on 8mm cine film, has a 13.9mm f/2.8 lens and a guillotine shutter with a single speed setting (1/50).[6]
At least one Japanese matchbox camera is known to exist today; it is not known if it was related to the Kaitenkei.
Notes
Bibliography
- Antonetto, M. and Russo, C. Topcon Story. Lugano: Nassa Watch Gallery, 1997. ISBN 88-87161-00-3. Pp.23 and 195.
- Baird, John R. The Japanese Camera. Yakima, WA: Historical Camera Publications, 1990. ISBN 1-879561-02-6. P.71.
