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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 (see also the Welta Superfekta of about the sametime, which has the same faciity). 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.

NOUVEAUTE modele REDUIT 1935 with rotating back. Modele A (non removable film only) and Model B (removable for film or plates)