The camera has a box-shaped body with a rigid tapered front, a large viewing hood, a focusing helical and various controls on the photographer's right, certainly to wind, set and trip the focal plane shutter. It is not known if the camera has a revolving back or not.
The Convex Reflex was advertised in the November 1924 issue of Ars Camera as "soon coming to the market" (近々市場に出現する). In a later advertisement, it was offered along with the Secrette 4.5×6cm detective camera and Apollo 6.5×9cm folder; the price is given as ¥135 and the lens is described as a Complanar (コンプラナー) f/4.5, specially made by a French company in Paris for Tokyo Camera Works, the manufacturing branch of Sone Shunsuidō.
| Advertisement published in the November 1924 issue of Ars Camera.|
Click on the image for a translation. (Image rights)
- Ars Camera. Advertisement by Sone Shunsuidō in November 1924. No page number.
- Morishita Hajime (森下肇). "Atomu-han kamera no subete" (アトム判カメラのすべて, All of Atom-size cameras). Kamera Rebyū: Kurashikku Kamera Senka (カメラレビュー クラシックカメラ専科) / Camera Review: All about Historical Cameras no.22, September 1992. No ISBN number. Airesu no subete (アイレスのすべて, special issue on Aires). Pp.55–70.