Contax S camera, 1949-1951.
© National Media Museum / Science & Society Picture Library
This 35 millimetre single lens reflex (SLR) camera was made by Zeis Ikon in East Germany. The 'S' stands for Spiegelflex (mirror reflex). The Contax S was the first postwar Zeis camera design and the first SLR to incorporate a pentaprism. It is generally regarded as being the father of all modern 35mm SLR cameras.