Thursday, March 22, 2007

Photography



Photography is a complex art form that has a variety of subjects and is practiced in a number of different ways. Taking good nature shots involves different equipment and techniques than photojournalism or contemporary portraiture. The intent behind your art not only influences the accessories you buy, but it also significantly improves your shots! New techniques and technology are emerging every year. Old tried and true techniques can now be emulated digitally. There is always something new to learn.

History of photography:
Photography gained the interest of many scientists and artists from its inception. Scientists have used photography to record and study movements, such as Eadweard Muybridge's study of human and animal locomotion in 1887. Artists are equally interested by these aspects but also try to explore avenues other than the photo-mechanical representation of reality, such as the pictorialist movement. Military, police and security forces use photography for surveillance, recognition and data storage. Photography is used to preserve memories of favorites and as a source of entertainment.
Modern photography can be traced to the 1820s with the development of chemical photography. The first permanent photograph was an image produced in 1826 by the French inventor Nicéphore Niépce. However, the picture took eight hours to expose, so he went about trying to find a new process. Working in conjunction with Louis Daguerre, they experimented with silver compounds based on a Johann Heinrich Schultz discovery in 1724 that a silver and chalk mixture darkens when exposed to light. Niépce died in 1833, but Daguerre continued the work, eventually culminating with the development of the daguerreotype in 1839.

Meanwhile, Hercules Florence had already created a very similar process in 1832, naming it Photographie, and William Fox Talbot had earlier discovered another means to fix a silver process image but had kept it secret. After reading about Daguerre's invention, Talbot refined his process so that it might be fast enough to take photographs of people. By 1840, Talbot had invented the calotype process, which creates negative images. In 1884, George Eastman refined Talbot's process, printing on film instead of photographic plates, which is the basic technology used by chemical film cameras today.

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