ZEISS IKON camera Stereo set 1427 viewfinder 50mm O 0.2-2.5m Steritar Contaflex. Everything visible in the images will be supplied. All in excellent ++ condition. Ever so slightly used. his is a beam splitter type attachment made in 1956 for the Contaflex III & IV cameras, fitted with the 50 mm f 2.8 Tessar. and was designed for close up work in the range 0.2 - 2.5 mtr. It is an exceptionally rare item since very few were made. Zeiss 50mm 0.2-2.5M Stereo Lens with 27mm Swivel Filter Holder (Close-Up Steritar for Contaflex III, IV, Rapid & Super Cameras)