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PHOTOGRAPHY

PHOTOGRAPHY

what is the photography?

  1- definition:

  Photography (derived from the Greek, meaning painting with light), is synonymous with the ancient art of painting. hrough the lens, the photographer re-projects the scene in front of him on a medium through which the scene can be re-enacted later.

  Photography is the process of producing images and scenery by means of light effects; The rays reflected from the scene form a shadow inside a light-sensitive material, and this material is then processed, resulting in an image that represents the scene. Photography is also called perspective photography.

  Film or film development technology is formed by complex chemical laboratory processes. When the film is exposed to light, the molecules of the film developer vibrate and this frequency creates an emulsion. At this temperature the emulsion is thin and if the film is exposed to light, the emulsion will be destroyed. After that, the memorizer or film is immersed in perspective or photographic chemicals, which are very dangerous because they lead to damage to the eyes and skin.

 The technique or technology of underpinning tape or memorized film is one part of perspective photography but the art of landscape or photography is how the photographic landscape artist views the world. Some photographers or landscape photographers aim to spread their views by designing the landscapes of their photographs.


  2:The history of photography

  The history of photography in remote antiquity began with the discovery of two crucial principles: the projection of a fuzzy image by a camera and the observation that certain materials change visually through exposure to light. No artifacts or descriptions indicate any attempt to take photographs with photosensitive materials prior to the 18th century.

  Around 1717, Johann Heinrich Schulze picked up cut letters on a bottle of photosensitive slurry, but he never considered making the results permanent. Around 1800, Thomas Wedgwood made the first reliably documented, though unsuccessful attempt to permanently capture camera images. His experiments produced detailed photographic schemes, but Wedgwood and his partner Humphry Davy found no way to fix these images.

  In the mid-1820s Nicephore Niepce was first able to repair an image taken with a camera, but at least eight hours or even several days of camera exposure was required and initial results were very rudimentary. Louis Daguerre, Nieps assistant, continued to develop the Daguerreo process, the first publicly announced and commercially viable photographic process. The daguerreotype required only minutes of camera exposure, and produced clear, meticulously detailed results. The details were presented to the world in 1839, a date generally accepted as the birth year of practical photography.

  The metal-based daguerreotype soon faced some competition from the paper-negative style and the saltpress printing processes invented by William Fox Talbot and introduced in 1839 shortly after news of daguerreotype reached Talbot. Subsequent innovations made shooting easier and more versatile. The new material reduced the exposure time required for the camera from minutes to seconds, and eventually to a fraction of a second; The new photographic media were more economical, sensitive and convenient. Since the 1850s, the collodion process with its glass-based photographic plates has combined the well-known high quality of daguerreotype with the many known calotype printing options and has been in common use for decades. Roller films were promoted for casual amateur use. In the mid-20th century, developments made it possible for amateurs to take pictures in natural color as well as black and white.

  The commercial introduction of electronic computer-based digital cameras in the 1990s quickly revolutionized photography. During the 2000s, traditional film-based photochemical methods were increasingly marginalized as the practical advantages of new technology became widely appreciated and the image quality of moderately priced digital cameras continually improved. Especially since cameras became a standard feature on smartphones, taking pictures (and posting them instantly online) has become a daily practice all over the world.



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