Everything About Photography

The cam is the image-forming device, and a photographic plate, photographic film or a silicon electronic image sensor is the capture medium. The particular recording medium can be the plate or movie itself, or a digital magnetic or electronic memory. Photographers manage the cam and lens to “expose” the light recording product to the needed amount of light to form a “latent image” (on plate or movie) or RAW file (in digital electronic cameras) which, after suitable processing, is transformed to a functional image. The resulting digital image is saved electronically, however can be reproduced on a paper. The cam (or ‘camera obscura’) is a dark room or chamber from which, as far as possible, all light is excluded other than the light that forms the image. It was discovered and used in the 16th century by painters.

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Cams can vary from small to huge, an entire room that is kept dark while the object to be photographed remains in another space where it is effectively illuminated. This was typical for recreation photography of flat copy when big film negatives were utilized (see Process camera). As quickly as photographic products ended up being “quickly” (delicate) enough for taking honest or surreptitious images, small “investigator” electronic cameras were made, some really camouflaged as a book or handbag or pocket watch (the Ticka video camera) or perhaps worn concealed behind an Ascot necktie with a tie pin that was really the lens. In contrast to a still electronic camera, which captures a single photo at a time, the motion picture camera takes a series of images, each called a “frame”. This is achieved through an intermittent system. The frames are later on repeated in a movie projector at a particular speed, called the “frame rate” (number of frames per second).

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Photos, both grayscale and color, can be captured and shown through two side-by-side images that imitate human stereoscopic vision. Stereoscopic photography was the very first that captured figures in movement. While known informally as “3-D” photography, the more accurate term is stereoscopy. Such electronic cameras have actually long been realized by using movie and more recently in digital electronic methods (consisting of mobile phone cameras).