William Henry Fox Talbot - The Chess Players, England

Nicolaas Henneman was actually a Dutch-born English photographer, born in the Netherlands on 11 January 1813 and died on 21 January 1898. Henneman is best known for his association with the inventor of photography, William Henry Fox Talbot. He played an important role in the early development and popularisation of photography in the 19th century. Henneman initially worked as Talbot's valet, but soon became involved in experiments with the calotype process, an early photographic technique developed by Talbot. The calotype process used a light-sensitive paper to create a negative image, which could then be used to create multiple positive prints. As well as working with Talbot, Henneman ran his own photographic studio in Reading, England. He produced calotype portraits and landscapes and contributed to the development of photography as an art form. His studio was an important centre for early photography and he worked with several prominent figures of the time. Nicolaas Henneman's contributions to the field of photography, both as a collaborator with Talbot and as an independent practitioner, have had a lasting impact on the history of this visual medium.

Antoine Franсois Jean Claudet was a pioneering French photographer who made significant contributions to the development of photography in the 19th century. He was born in 1797 in La Croix-Rousse, Lyon, France, and began his career as a chemist. In 1829 he moved to England and set up as a portrait painter. However, he soon became interested in photography and began to experiment with the new medium. In 1839 he became one of the first photographers in England to use the daguerreotype process. Claudet quickly became one of the leading portrait photographers of his time and was renowned for his technical expertise and artistic skill. He was also an innovator, developing new techniques and equipment to improve the quality of his photographs. One of his most significant contributions to photography was the invention of the red-sensitive collodion process, which made it possible to produce colour photographs. He also developed a method for producing stereoscopic images, which became popular in the mid-19th century. Claudet's work was widely exhibited and he received numerous prizes and honours throughout his career. He died in London in 1867, leaving a legacy as one of the most important figures in the early history of photography.