founded C. A. Steinheil & Söhne, an optical-astronomical company. The company built telescopes, spectroscopes and photometers – one of Steinheil's inventions
had worked together at C. A. Steinheil & Söhne; Bruns was an inventor responsible for developing leaf shutters while Deckel was a laboratory mechanic. By
Bavaria, Germany, to Carl August von Steinheil and Margarethe Amalie née Steinheil. He worked for C. A. Steinheil & Söhne [de], an optical-astronomical company
Germany, the momentary-action setting on camera shutters made by C. A. Steinheil & Söhne in Munich were denoted with "B" but the literature referred to