A short article with an excursion on dates, names and discovered photo effects that contributed to what is now the process of photography.
The influence of sunlight on objects and human bodies has been clear for a long time. The first mentions of the influence of sunlight on silver nitrate date back to the 8th century AD. According to saved documents, the alchemist Yabir Khayyam was interested in this problem. Be that as it may, the history of the evolution of modern photography started not so long ago and is equal to several centuries.
From different primary sources, the authorship of the discovery of photo effects is given to different people. In 1694, Gomberg found the effect of tarnishing the surface of a bone with a solution of silver nitrate previously applied to it. In 1725, our compatriot Bestuzhev-Ryumin conducted experiments on light sensitivity using iron salts, and at the same time, physicist Heinrich Schulze discovered the effect of silver salt tarnishing under the influence of light.
In 1727, Schulze published records of his own experiments. He attached all sorts of figures to a container in which chalk, silver and nitric acid were mixed. The figures were made of paper and made it possible to retain an image on the surface of the solution when the structure was illuminated with bright light. As a result, this image disappeared when the solution was mixed.
In 1796, Tom Wedgwood successfully conducted an experiment on impregnating leather and paper with silver salts with subsequent retention of the image under the influence of sunlight.
In 1802, the Englishmen Wedgwood and Davy began attempts to retain an image on paper. The paper was impregnated with silver nitrate and made it possible to retain a contact negative image of superimposed objects under the influence of light. In both of these cases, the image was not fixed and gradually disappeared. The discovery of the fixing process occurred several years later, which made it possible for the invention to find at least some practical use.
The year 1878 is conventionally considered the start of the mass passion for photography, after the start of widespread sales of Kodak roll film. In 1900, the same company sold a cheap film camera, which was similar to modern "soap dishes". In 1937, the mass production of the first SLR cameras began, which made every amateur photographer take up photography professionally.
To book a family photoshoot, please contact me:
+49 159 04837874 - phone, WhatsApp
morefoto@gmail.com
Sincerely, Eduard Stelmakh.
stelmakh.com