Photoplastik is a stereoscopic camera becomes very quickly and easily into a stereoscopic viewer. The body of this pressure chamber melted in"" Aeral"" a stainless steel alloy having the appearance of silver, the lightness of aluminum, steel resistance and therefore no Plastik. The shutter brightly enameled black contrasts sharply with the back of the camera. He has the pose and the moment. The objectives have indicated Stéréostigmats Gaumont opening F: 10 (10, 14 and 20), but much more open to allow use as stereoscope. They are eccentric. The diaphragm is an iris. Stereo rare Gaumont Stereostigmat f 10 Paris 1931