Rolleiflex Automat @ 1949

Rolleiflex Automat 6x6
Model K4 / 50
October 1949 - May 1951
Serials: 1.100.000 - 1.168.000
Taking Lens:
Zeiss Jena Tessar 3,5/75
Zeiss Oberkochen Opton 3,5/75
Schneider Xenar 3,5/75
All with filter Bayonet I
Finder lens:
Heidoscop Anastigmat 2,8/75mm
Bayonet I
Shutter:
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: 14.3x9.0x9.5cm
Weight: 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.