The Belplasca was the main part of the product mix of VEB Belca-Werk for stereoscopic photography. This stereo camera for twice the exhibition format 24 × 30 mm was introduced at the international fair Leipziger Frühjahrsmesse in 1954. The other products were slide frames stereo, the slide viewer stereo Belcaskop, and later the slide projector stereo Belplascus and polarized glasses stereo vision. The camera was designed with great precision. His selection ring around a distance and selection ring opening around the other lens, both selectors to affect both sides. A knob between the lenses served as a speed selector for double shutter. Opening a scale twice around the ring away selection helped estimate the depth of field. With the appearance of this equipment, night stereoscopic projection slides became fashionable for a while. 229501658_916ed8551e.jpg A Belplasca with a pair of lenses Carl Zeiss Jena Tessar 37.5 mm / 3.5 mm. Uwe Kulick image (rights) technical characteristics Type: Stereo Camera viewfinder photo Manufacturer: VEB Belca-Werk (Dresden, Germany East) Release year: 1954 Film: 35 mm (20 to 22 pairs of images in a movie possible) Lenses: two lenses Carl Zeiss Jena 1: 3.5 / 37.5mm, 64mm distance between optical axes, minimum distance to the object 2.5 m, or 1 m lenses proximity lenses. Shutter speeds from double shutter 1 sec. to 1/200 sec. Diaphragm iris located between the optical elements of lens, aperture 1: 3.5 to 1:16 Viewfinder: Viewfinder type telescope coupled to the selector away for parallax correction. Dimensions: 15.8 × 7.7 × 6 cm Weight: 800 g