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Ogasawara Kōgaku (小笠原光学) was a Japanese company based in Tokyo, Adachi in 1943.[1] It is mentioned in the April 1943 government inquiry as the maker of the Mizuho 75/4.5 lens of the Mizuho and of the Hokoku 75/4.5 lens of the Hokoku, both with three elements.[2]

Notes Edit

  1. Its address in 1943 was Tōkyō-to Adachi-ku Umeda-machi 7807 (東京都足立区梅田町7807). Source: "Kokusan shashinki no genjōchōsa" ("Inquiry into Japanese cameras"), listing the Japanese camera production as of April 1943.
  2. "Kokusan shashinki no genjōchōsa" ("Inquiry into Japanese cameras"), lens items Lc15 and Lc16.

Bibliography Edit

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