The Baby Oso (ベビー・オーソ) is a 3×4 camera announced in 1937 by the Japanese company Optochrom. The only advertisement mentioned by Kokusan kamera no rekishi is dated February 1937. The Baby Oso is presented as soon to be available, with no price indicated.
The shutter has T, B, 25, 50, 100 speeds. The lens aperture is f:4.5 but the lens name is a bit confusing: it could be New Gold Lausar, or New Gold and Lausar could be a choice of two different lenses.
- The Roman spelling "Oso" is only inferred from the katakana オーソ. Kokusan kamera no rekishi exceptionnally gives no Roman equivalent. Given that the camera probably did not reach production level, it is possible that no Roman name was ever attributed.
- Advertisement for the Baby Chrome, Baby Oso and Semi Chrome A and B, originally published in the February 1937 issue of Asahi Camera, reproduced in Shōwa 10–40nen kōkoku ni miru kokusan kamera no rekishi in two parts, items 34 and 89–91.
- Roman writing temptatively inferred from the katakana ニユーゴールド・ローザー.
- 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. Item 34.
|Kigawa timeline ( )|
|Baby Oso||Tsubasa Oso|
|4.5×6||strut folding||Semi Chrome B|
|horizontal folding||Tsubasa Super Semi||...||_|
|Tsubasa II Super Semi|
|Tsubasa Nettar||Tsubasa Kiko Three|
|vertical folding||Semi Chrome A||Semi Sixteenth
|Semi Kulax||Kiko Semi||...||_||Tsubasa Semi|
|6×6||horizontal folding||Gotex||...||...||Poppy Six
|Manufacturer:||...||Kigawa Seimitsu||...||Kigawa Kōgaku||Carl Kōgaku|
|Distributor:||Optochrom-sha||...||Nichiei Shōkai||Kikō Shōji||...|
|Cameras whose actual existence is dubious are in a lighter shade.|
|Cameras in yellow are variants sold and maybe assembled by other companies.|