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The First Photograph
Joseph Niepce attempted to capture images from the camera obscura. He sensitised paper with silver salt and was able to take faint images, but he couldn't make them permanent. He was experimenting for a while when he figured out that applying a light-sensitive varnish containing bitumen to a metal plate, exposing the image, then dissolving the unexposed parts in an oil of lavender solution, he could capture a permanent photo. Between 1826 and 1827, Niepice took the first photo using this process -
Fox Tabot's Collotype
In this technique, a sheet of paper coated with silver chloride was exposed to light in a camera obscura; those areas hit by light became dark in tone, yielding a negative image.The developing process permitted much shorter exposure times in the camera, down from one hour to one minute. -
The Daguerreotype
The daguerreotype was the first commercially successful photographic process (1839-1860) in the history of photography. Named after the inventor, Louis Jacques Mandé Daguerre, each daguerreotype is a unique image on a silvered copper plate. -
The Collodion Wet Plate
During the subsequent decades, many photographers and experimenters refined or varied the process. By the end of the 1850s it had almost entirely replaced the first practical photographic process, the daguerreotype. Collodion process, mostly synonymous with the "collodion wet plate process", requires the photographic material to be coated, sensitized, exposed and developed within the span of about fifteen minutes, necessitating a portable darkroom for use in the field. -
The Dry Plate Negative
Dry plate, also known as gelatin process, is an improved type of photographic plate. It was invented by Dr. Richard L. Maddox in 1871, and by 1879 it was so well introduced that the first dry plate factory had been established. -
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The Early Pictorialists
Pictorialism is the name given to an international style and aesthetic movement that dominated photography during the later 19th and early 20th centuries. -
First light meter
First light meter with photoelectric cell is introduced.
