Photography is derived from the Greek words photos ("light") and graphein ("to draw"). Scientist Sir John F.W. Herschel was the first person who used this word in 1839.
Louis daguerre was the first person and also the inventor of the first pratical process of photography. In 1829, he formed a partnership with Joseph Nicephore Niepce to improve the process Niepce had developed.
After several years of experiment and Niepce’s death, Louis developed a more convenient and effective method of photography.
Louis fixed the images onta a sheet of sliver plated copper. Then he polished the silver and coated it in iodine, creating a surface that was sensitive to light. Then, he put the plate in a camera and exposed it for a few minutes. After the image was painted by light, Daguerre bathed the plate in a solution of silver chloride. This process created a lasting image, one that would not change if exposed to light.
In 1839, Lousi and Niepce’s sons sold the right to the French government and published the book about describing the process. In 1850, both gained the popularity.
Color Photography:
In the year 1940’s commercially viable color films were brought to the market. These films used the modern technology of dye-coupled colors in which a chemical process connects the three dye layers together to create an apparent color image.
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