Early Photography
Alzahen was an arabian scientist who invented the camera obscura which was used by artists during the renaissance. It was a dark room that you held up to an image that was light and an artist could then paint the reflected image. Alzahen created the first camera obscura in 1685. Johann Heinrich Schultz made an improvement to Alzehens discovery in 1717 he discovered that silver nitrates darkens upon exposure to light. Joseph Nicephore Niepce was a French inventor, now usually credited as the inventor of photography and a pioneer in that feild. Niépce developed heliography, a technique he used to create the world's oldest surviving product of a photographic process a print made from a photoengraved printing plate in 1825.was an English scientist, inventor and photography pioneer who invented the salted paper and calotype processes, precursors to photographic processes of the later 19th and 20th centuries. His work, in the 1840s on photomechanical reproduction, led to the creation of the photoglyphic engraving process, the precursor to photogravure. He was the holder of a controversial patent which affected the early development of commercial photography in Britain.Calotype or talbotype is an early photographic process introduced in 1841 by William Henry Fox Talbot, using paper coated with silver iodide.was a French artist and photographer, recognized for his invention of the daguerreotype process of photography. He became known as one of the fathers of photography. Though he is most famous for his contributions to photography, he was also an accomplished painter and a developer of the diorama theatre.