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| − | __NOTOC__'''Katsuma Kōgaku''' (勝間光学, translated as Katsuma Optical Co.) is a Japanese company. It is mentioned by various sources as a binocular maker.
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| − | | + | At least two camera-related Japanese companies were called '''Katsuma''': |
| − | In 1932, a company called Katsuma Kōgaku Kikai Seisakusho (勝間光学機械製作所) is cited together with the measuring instruments branch of [[Seikosha|Seikōsha]] (精工社) as the two founders of [[Topcon|Tōkyō Kōgaku]] (later Topcon), both being dependent of [[Hattori|Hattori Tokei-ten]].<REF> According to [http://www.topcon.co.jp/invest/13faq.html this page of the official Topcon website] and to the JCII exhibition catalogue ''Nihon no kamera o omoshiroku shita kyōshū no burando ten''. </REF> It is unknown if this company is related to the later camera maker. | + | # In 1932, a company called '''Katsuma Kōgaku Kikai Seisakusho''' is cited as one of the two founders of [[Tōkyō Kōgaku]] (see this page). |
| − | | + | # In the 1950s, '''Katsuma Kōgaku Kōgyō K.K.''' was the new name of [[Fuji Kōgaku]] (see this page). It was also a binocular maker, sometimes using the English name '''Katsuma Optical Company'''. |
| − | In the 1950s, a company called '''Katsuma Kōgaku Kōgyō K.K.''' (勝間光学工業株式会社)<REF> Its address in 1955 was Tōkyō-to Toshima-ku Ikebukuro 6–1981 (東京都豊島区池袋6の1981). </REF> made cameras with the Lyra brand name and used the Terionar brand name for some lenses. These brand names were used by [[Fuji Kōgaku]] until 1944, and maybe also after the war.<REF> This is suggested by the existence of a version of the [[Lyra Six]] with a top housing, having Fujikō markings and typical postwar features, like the synchronized shutter with PC connector. </REF> On its Lyra cameras, the company used a ''KATUMA<REF> 'Katuma' and 'Katsuma' are two alternative ways to write 勝間 in the Roman alphabet. The latter is closer to the true pronunciation. </REF> LYRA'' logo that was similar in shape to the logo used by Fuji Kōgaku<REF> Another logo has been used on binoculars: ''KOC'' (for <u>K</u>atsuma <u>O</u>ptical <u>C</u>ompany) inside a triangle inside a circle. </REF>. It is said that the latter company was split into two parts after the war: [[Taisei Kōki]] and Katsuma Kōgaku, with the latter one keeping the Lyra brand name.<REF>According to Tanaka, p. 44, and [http://rd2h-ari.hp.infoseek.co.jp/LYRA_PIC.htm this page at Japan Family Camera].</REF> | |
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| − | A related company is [[Pioneer Camera]], which was contemporary with Katsuma and shared the same address.
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| − | == 4.5×6 folder ==
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| − | * [[Semi Lyra|Semi Lyra A, SR]] (postwar models)
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| − | == 6×6 TLR ==
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| − | * [[Lyraflex]]
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| − | == Notes ==
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| − | <references />
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| − | ==Sources / further reading ==
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| − | * ''Nihon no kamera o omoshiroku shita kyōshū no burando ten'' (日本のカメラを面白くした郷愁のブランド展, Exhibition of nostalgic brands that made Japanese cameras interesting). Tokyo: JCII Camera Museum, 1997. Exhibition catalogue.
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| − | * Tanaka Masao (田中政雄). ''Nihon no niganrefu: Zenpen'' (日本の二眼レフ：前編, The TLRs of Japan, vol. 1). Tokyo: Asahi Sonorama, 1983. ISBN 4-257-08088-4
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| − | [[Category: Japanese camera makers]]
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