Shinano Kōki was a Japanese camera maker in the early 1950s. It made some versions of the Pigeon 35 and Pigeonflex, distributed by Endō, owner of the Pigeon brand. The Pigeon Six folder is also attributed to Shinano.
- 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.