History of photography

1. By sharna harrison . h istory of photography

2. The camera obscura The camera obscura is an optical device That projects an image of its surroundings onto a screen inside. The image appears upside down and the camera obscura only Works on a sunny day. The image can be projected onto paper, And then traced to make an accurate r epresentation. Using mirrors as in the 18 th c entury you would be able to flip the image so it was the right way up. Another more portable type is a box with an angled mirror projecting onto tracing paper placed on the glass top, the image being upright as viewed f rom the back . The smaller the pinhole the sharper the image gets.

3. j. Nicephore niepce 1826. A french inventor who was made famous by developing the worlds first photograph in 1825. His son Isidore formed a partnership with Daguerre. From I sidores’s partnership with Daguerre came the Dagurreotype . Nicephore niepce and his first developed p icture.

4. Sir john hershel Sir John Hershel 1867. John H ershel was an E nglish astronomer who wanted make copies of his notes. He contributed massively to the world of photography we know to day by creating the first ever cyanotype (blueprint). He discovered sodium thiosulfate to be a solvent of silver halides in 1819, and informed Talbot and Daguerre of his discovery that this "hyposulphite of soda" ("hypo") could be used as a photographic fixer, to "fix" pictures and make them permanent, after experimentally applying it thus in early 1839. His ground-breaking research on the subject was read at the Royal Society in London in March 1839 and January 1840.

5. Henry fox talbot William Henry Fox Talbot.1864. Latticed window in Lacock Abbey in 1835 by Talbot is a print from the oldest Photographic n egative in e xistance . William H enry F ox T albot was a B ritish inventor and a photography pioneer who invented The calotype process. Talbot's original contributions included the concept of a negative from which many positive prints can be made even though the first concept of Positive and negative was created by John Hershel.