WORKS BY TIKACHI
“Photography is the science, art, application and practice of creating durable images by recording light or other electromagnetic radiation or chemically.”
Leonardo da Vinci mentions natural camera obscura that are formed by dark caves on the edge of a sunlit valley.
A hole in the cave wall will act as a pinhole camera and project a laterally reversed, upside down image on a piece of paper. So the birth of photography was primarily concerned with inventing means to capture and keep the image produced by the camera obscura.
Renaissance painters used the camera obscura which, in fact, gives the optical rendering in color that dominates Western Art. The camera obscura literally means “dark chamber” in Latin. It is a box with a hole in it which allows light to go through and create an image onto the piece of paper.
Around the year 1800, British inventor Thomas Wedgwood made the first known attempt to capture the image in a camera obscura by means of a light-sensitive substance. He used paper or white leather treated with silver nitrate.
British chemist John Herschel made many contributions to the new field.
Hurter and Driffield began pioneering work on the light sensitivity of photographic emulsions in 1876. Their work enabled the first quantitative measure of film speed to be devised.
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The first flexible photographic roll film was marketed by George Eastman.
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