Notes; History of Photography Part I

A daguerreotype of Louis Daguerre

1. "Camera Obscura" used during Renaissance
2. Permanent mirror predicted in science fiction (1700's)
3. 1700's photo-reactive chemicals discovered
4. Thomas Wedgwood experiments with silhouettes on china, cant make permanent
5. 1827 Nicephore Niépce produces picture using material that hardens when exposed to light
   (takes 8 hours of exposure)
6. Niépce dies, his partner, Louis Daguerre develops plates "daguerreotype" (only takes 1 1/2 hours to expose) and can make permanent by immersing in salt.
7. By 1840, William Henry Fox Talbot invents "Calotype," Prints on paper instead of plates.
8. 1848 Abel Niépce de Saint-Victor perfects negative process using emulsion on glass plates.
9. 1851 Fredrick Scott Archer introduces "Collodion" process reduces exposure time down to 2-3 seconds, features positives, not negatives and requires wet processing. (Big carts)
10. 1871 Dr. Richard Maddox uses gelatin emulsion, allows for "mass-produced" dry plates.
11. 1884 John Carbutt and George Eastman use thin celluloid film for negatives, 1888 introduce "box" camera.

Diagram of Camera Obscura