The Ontoflex is an unusual TLR, made by Cornu, France in 1934. It takes 6×9 pictures on 120 film. The Ontoflex has a special provision to rotate the camera back to allow for portrait and landscape oriented pictures. The taking lens is a 75/3.5 Tessar in a Compur Rapid B, 1-1/400s shutter.
The Ontoflex A takes only rollflm, the model B has interchangeable plate or rollfilm backs.
- A Ontoflex at www.tlr-cameras.com
- Various models of Ontoflex on www.collection-appareils.fr by Sylvain Halgand: