
Richard Beard
Richard Beard was an entrepreneur who profitably established himself in the coal trade in London. With his entrepreneurial spirit, in 1841, he paid Louis Daguerre 150 pounds for a license to use his technology. He set up photography as a business speculation and opened the world's first...

Charles Harper Bennett
Charles Bennett was an English photographic pioneer. He improved the gelatine silver process developed by Richard Leach Maddox. In 1873 he created a method of hardening the emulsion, making it more resistant to friction, and larger. In 1878 he discovered that by prolonged heating the sensitivity...

Robert Jefferson Bingham
Robert Bingham was an English pioneer photographer, mainly active in France, making portraits and reproductions of paintings. He had a background in chemistry and was particularly interested in photographic processes and published a treatise on this subject in 1848. He later became the first...

Louis Désiré Blanquart-Evrard
Louis Désiré Blanquart-Evrard was a cloth merchant from Lille, France who learned the calotype process from his druggist, a student of the inventor of the calotype, William Henry Fox Talbot. He developed a method of bathing the paper in solutions of potassium iodide and silver nitrate rather...