Chiyoda Kōgaku Kōgyō
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Chiyoda Kōgaku Kōgyō (千代田光学工業) was a Japanese company, which made the Chiyoda 80/3.5 lens mounted on the Kyowa Six RIII in 1954–5.[1] Nothing else is known about this company.
Bibliography
- Asahi Camera (アサヒカメラ) editorial staff. Shōwa 10–40nen kōkoku ni miru kokusan kamera no rekishi (昭和10–40年広告にみる国産カメラの歴史, Japanese camera history as seen in advertisements, 1935–1965). Tokyo: Asahi Shinbunsha, 1994. ISBN 4-02-330312-7.
