This was actually my first film panorama camera I bought somewhere in 2001. Produced by Kamerawerk Dresden since early 1990's the camera follows the same principle as Widelux and Horizont cameras with a rotating lens (swinglens). It exposes on 35mm film 19 24x66 mm images with roughly 135 degree of view with a fix focus 29mm f/4.5 lens.
The N/S/U version differ by shutter speed range (actually no shutter involved!) and shift control. The N offers shutterspeed from 1/60 to 1/500 and no shift, U and S have shift, U extends to 1sec and S (sport) to 1/30.