ROLLEIFLEXAutomat 6x6 - Model K4 / 50

October 1949 - May 1951Serials: 1.100.000 - 1.168.000 Taking Lens:Zeiss Jena Tessar 3,5/75Zeiss Oberkochen Opton 3,5/75Schneider Xenar 3,5/75All with filter Bayonet IFinder lens:Heidoscop Anastigmat 2,8/75mmBayonet IShutter:Compur - Rapid, 1 - 1/500 sec., T & B, self timer. Standard X sync.Film: 6x6: B II 8 (120) & 35mm with Rolleikin 2 adapter set.Film Transportation: winding lever with auto stop, no red window, film pressure plate with black color coating. Lever also cocks the shutter. Double exposure prevention. Dimensions: 14.3x9.0x9.5cmWeight: 965 grams. This model has a hinged back with exposure guide, which can be exchanged for a dual film format back. The camera could be used with Rolleikin 2 to use 35mm film. The following parts of his model can be modernized: larger focusing knob & double exposure safety lock. Also useable after modifications: Rolleimarin I under water housing, Rolleimeter, Rolleiflash, Rolleikin 2 with dual format back.