History of Photography
The history of photography spans millennia, ranging from the Greek philosophers to the photographic pioneers of today. Throughout this history, the problem of being able to store an image, or make it permanent, has been the most restrictive factor of advancement in photography. How was this problem overcome, and how is it being dealt with today? The history of film is what has made these problems solvable. The first real photographic discovery came when Aristotle came upon camera obscura. What aristotle saw was a reflection of an image from outside on a wall inside a dark room. Although this was an amazing discovery, people didn't realize its significance until about 1500 A.D. in Italy. The the principle was rediscovered, and given its first real use in what can be called the first camera. It was a large box, with a small opening through which the image was projected, and then sketched by artists, and later colored. This had obvious shortcomings however, and people still sought after a way to permanently record an image. Nearly 250 years later, a German Physicist named Johann H. Schulze discovered that silver salts change when exposed to light, and about 50 yeas later, a Swedish Chemist named Carl Scheele discovered that
Archer introduced a photographic process that greatly reduced exposure time and improved the quality of prints. They were also capable of many things that a daguerreotype was not. But as we look forward, even the roll film will eventually be replaced by the next great thing: digital photography. The collodion had to remain moist during exposure and developing, and so a photographer had to develop pictures immediately after taking them. After a roll had been used, a person sent the camera with the film inside to one of Eastman's processing plants. The invention of the dry-plate process by a british doctor named Richard L. By using dry plates, photographers did not have to process a picture immediately. Both Daguerre and Fox Talbot began to use this chemical as a fixer. A tablotype could produce many prints from one exposure, a daguerreotype could not. The Kodak system also eliminated the need for photographers to process their own pictures. These factors led to the eventual demise of the daguerreotype. This early method of recording an image was called a Daguerreotype. The use of the gelatin also made it possible to take a camera off a tripod, as it reduced exposure times to 1/25 of a second. This was a major improvement on the previous methods of taking pictures, however inconvenient. For example, a tablotype could be used in a newspaper, a daguerreotype could not.
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Acceptance Essays
