Oko Six

Oki (Ōki Kōgaku Seiki Seisaku-sho 大木光学精機製作所, i.e. "Ōki precision machinery factory") was the producer of two cameras during the Second World War.

Advertised in 1941–2, the Oko Six (オーコーシックス) was a folding 6×6 with a folding finder, and a Purejon (プレジョン) shutter. There were two versions, the Oko Six I with a Sanko (サンコー) 75/4.5 lens; and the Oko Six II with an Okor (オーコール) 75/4.5 lens.

Advertised in 1942, the Oko Semi was a folding 6×4.5 camera with a Purejon shutter and an Okor 75/4.5 lens.

Names in roman letters above are tentatively inferred from katakana printed in advertisements; the actual roman forms may differ.

Source / further reading

• 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