175 years of Photography

175 years ago, on 19 August 1839 to be precise, a pioneering invention was presented to the world at the Academy of Sciences in Paris: the daguerreotype, named after the Frenchman Daguerre. In the following years the term "photography" was to become established. This expression, formed from two Greek words, photos (light) and grapheïn (to draw, write), illuminates to this day the ubiquitous principle of recording a picture, without which modern life cannot be imagined. Whether polished silver plates à la Daguerre, the paper negatives of Talbot's calotypes, glass plates using Frederick Scott Archer's collodion process, dry photographic plates, rolls of film and various processes that followed until the enormously high-performance smartphone cameras of the present day – the principle remains the same. This relates not only to the technical method but also to the variety of applications professionally and as a hobby, for science and art. Photography is more than memory documented in pictorial form. It is "drawing with light" in the best sense of the term - as the photographers in this issue once again demonstrate.