Satellite Tracking Cameras Developed in Germany (GDR)

The main types of satellite tracking cameras developed in Germany (GDR) are described: 1) the 8-inch mirror-lens camera using a rotating shutter and an equatorial mount (Geodetic Institute at Potsdam), 2) the 12-inch camera with a Sonnefeld optical system on a four-axis mount (Technische Hochschule at Ilmenau), and 3) the highly automated" Automatic Camera for Astrogeodesy" using a 17-inch Schmidt optical system on a four-axis mount (VEB Carl Zeiss at Jena).