Miethe: 1862-1927: a pioneer of color photography, was a German scientist. After studies of physics, chemistry and astronomy in Göttingen he did his doctorate about actinometry of photographic astronomic fixed star exposures in 1889.

In 1887 he was (together with Johannes Gaedicke) co-inventor of the photographic magnesium flash-powder. Later he worked for the optical company Schulze & Barthels in Rathenow, where he developed telescopes, binoculars and one of the first tele-lenses for cameras. 1894 he went to Voigtländer & Sohn in Braunschweig. In 1899 he became successor of Prof. Hermann Wilhelm Vogel at the Royal technical University in Berlin as professor for photography, photo chemistry and spectral analysis.

Wilhelm Bermpohl built a 3-color camera designed by Miethe which had been introduced to the public in 1903. Miethe was also one of the lens developers for the early Bermpohl cameras. In 1901 he discovered how to sensitize panchromatic film material for exposures with ethyle red.  Later he became more and more engaged for astronomical photography. 1.

1. From: Camerapedia.org