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roter's picture

As the knob was turned the shutter plus lens moved back and forth. testinside 70-573 Coupled with a coincident image testinside 70-642 rangefinder in the viewfinder, this measured and set the distance. In the center of the focusing knob was a key, which popped up to be used for testinside 70-646 film rewinding. While early models had a knob to wind the film a lever was eventually introduced that took two strokes to advance one frame. The film counter was engraved below this.

spiele's picture

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