Heidoscopio 6 x 13, around 1932 Franke & Heidecke, Brunswick. stereo camera plates 6 x 13 cm with interchangeable magazine for 12 plates, lenses: Carl Zeiss Jena Tessar 4.5 / 7.5 cm, iris diaphragms 4.5 / 7.5 cm, pneumatically controlled central shutter Z, B, 1-1 / 300 sec. 1-1 / 300 sec. (Incorrect long time), setting distance of 1 m?, Viewer folding box with matte screen with second charger plates, paint badly damaged, with carrying bag. On the front, under the lens and viewfinder we can see the model name printed in elegant cursive script: Heidoscop. The Heidoscop was the first made by Franke & Heidecke camera, optical equipment manufacturers located in the German town of Braunschweig. Founded in 1920 by Paul Franke and Reinhold Heidecke years later, the company became known as Rollei-Werke. The firm was responsible for the launch of the series of cameras Rolleiflex and Rolleirecord. The design of the camera in question, the Heidoscop, is clearly inspired by the Stereflektosko of Voigtländer, manufactured in 1914.
