By Richard Romando
A photograph is essentially a drawing made with the help of light. Usually a camera takes photographs. But you can also get images by placing an object on photography paper and exposing it to light. Even scanners can make photographic images.
Photographs are taken when light enters the camera and focuses on an image. In a camera, light exposes the film and an image is registered. Special chemicals then process this film and a negative is made that is then transferred onto a sheet of paper to create the photograph we see. Slides or transparencies are a type of film used by professionals; these are positives and are sharper than ordinary films. Today many use digital cameras that do not need films.
A very simple camera was developed in the 1500s, but the first real camera was made around 1826. They became increasingly sophisticated in the later 1800s and into the 1900s. Some of the great pioneers in the science of photography are Johann H. Schulze, Carl Scheele, Joseph Nicephore Niepce, Louis Daguerre, William H. Fox Talbot, Frederick S. Archer, Richard L. Maddox, and George Eastman.
Over the years, technology has become sophisticated and an automatic camera can now produce a photograph in just about 15 seconds, while digital cameras show you the results immediately.
Among of the first to use a camera artistically were Gaspard Felix Tournachon and Nadar Anotehr.With the camera, for the first time, real life events could be recorded. People took photos of situations like avalanches, wars, social causes, etc. The photos of William H. Jackson helped create Yellowstone Park, while Jacob A. Riis and Lewis W. Hine showed the horrors of New York in the 1800s and helped bring about improvements there. The flashbulb helped better photography, and photography began to find its place in advertising, broadcasting, and in recording family events. Photographers like Margaret Bourke-White and Robert Capa made their mark when they recorded important people and events.
What makes a good photograph is focus; aperture; exposure, which is determined by shutter speed; focal length, which usually depends on the type of lens used; the medium used; and its sensitivity to light and color. All of these are interconnected. For example, the brightness of an aperture could be increased by the shutter speed, while changing focal length can control depth of field.
All adjustments usually depend on the subject, the lighting, and the depth of field you want. Light affects shutter speed and aperture size. So, on a bright day, use a fast shutter and a small aperture, while on a cloudy day, reduce the shutter speed and increase aperture. Artificial light will need different settings. For a moving subject, you should increase the shutter so that there is no blurring. If you want to photograph a large area, you should use a smaller aperture. Practice will help you get the correct effects. However, modern digital cameras have made all this much easier with everything being automatic.
Photography has become more fascinating than ever before. It has been a long journey from black and white and sepia tinted photos to easy-to-create digital images. Today photography is being used in every sphere of life, from medicine to space stations to a family picnic.
Photographs provides detailed information on Photographs, Aerial Photographs, Black and White Photographs, Vintage Photographs and more. Photographs is affiliated with Digital Stock Photography.
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