Photography and camera

Light-field camera Digital methods of image capture and display processing have enabled the new technology of "light field photography" also known as synthetic aperture photography. This process allows focusing at various depths of field to be selected after the photograph has been captured. These additional vector attributes can be captured optically through the use of microlenses at each pixel point within the 2-dimensional image sensor.

Photography and camera

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Etymology[ edit ] The coining of the word "photography" is usually attributed to Sir John Herschel in Camera obscura Principle of a box camera obscura with mirror A natural phenomenon, known as camera obscura or pinhole image, can project a reversed image through a small opening onto an opposite surface.

This principle may have Photography and camera known and used in prehistoric times. The earliest known written record of the camera obscura is to be found in Chinese writings called Mozidated to the 4th century BCE.

Until the 16th century the camera obscura was mainly used to study optics and astronomy, especially to safely watch solar eclipses without damaging the eyes.

In the later half of the 16th century some technical improvements were developed: In Giambattista della Porta advised using the camera obscura as a drawing aid in his popular and influential books. Della Porta's advice was widely adopted by artists and since the 17th century portable versions of the camera obscura were commonly used - first as a tent, later as boxes.

The box type camera obscura was the basis for the earliest photographic cameras when photography was developed in the early 19th century. History of the camera Before Turin Shroud and light sensitive materials[ edit ] The notion that light can affect various substances - for instance the suntanning of skin or fading of textile - must have been around since very early times.

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Ideas of fixing the image seen in mirrors or other ways of creating images automatically may also have been in people's mind long before anything like photography was developed. The actual method that resulted in this image has not yet been conclusively identified.

It first appeared in historical records in and radiocarbon dating tests indicate it was probably made between and Georg Fabricius —71 discovered silver chloridelater used to make photographic paper. He also noted that paper wrapped around silver nitrate for a year had turned black.

After experiments with threads that had created lines on the bottled substance after he placed it in direct sunlight for a while, he applied stencils of words to the bottle.

The stencils produced copies of the text in dark red, almost violet characters on the surface of the otherwise whitish contents. The impressions persisted until they were erased by shaking the bottle or until overall exposure to light obliterated them.

Schulze named the substance "Scotophorus", when he published his findings in He thought the discovery could be applied to detect whether metals or minerals contained any silver and hoped that further experimentation by others would lead to some other useful results.

The first effect of this cloth is similar to that of a mirror, but by means of its viscous nature the prepared canvas, as is not the case with the mirror, retains a facsimile of the image. The mirror represents images faithfully, but retains none; our canvas reflects them no less faithfully, but retains them all.

This impression of the image is instantaneous. The canvas is then removed and deposited in a dark place. An hour later the impression is dry, and you have a picture the more precious in that no art can imitate its truthfulness.

The hour of drying in a dark place suggests he possibly thought about the light sensitivity of the material, but he attributes the effect to its viscous nature. Scheele's forgotten chemical fixer [ edit ] Inthe chemist Carl Wilhelm Scheele was studying the more intrinsically light-sensitive silver chloride and determined that light darkened it by disintegrating it into microscopic dark particles of metallic silver.

Of greater potential usefulness, Scheele found that ammonia dissolved the silver chloride but not the dark particles. This discovery could have been used to stabilize or "fix" a camera image captured with silver chloride, but was not picked up by the earliest photography experimenters.

Fleeting detailed photograms ? He originally wanted to capture the images of a camera obscura, but found they were too faint to have an effect upon the silver nitrate solution that was advised to him as a light-sensitive substance. Wedgwood did manage to copy painted glass plates and captured shadows on white leather as well as on paper moistened with a silver nitrate solution.

Attempts to preserve the results with their "distinct tints of brown or black, sensibly differing in intensity" failed. It is unclear when Wedgwood's experiments took place.Nov 17,  · Welcome to the Digital Photography Review discussion forums.

The original and the best digital photography forums established January Here you can discuss, ask questions or generally debate anything related to digital photography, digital cameras or digital imaging technology.

Photography is the result of combining several technical discoveries. Long before the first photographs were made, ancient Han Chinese philosopher Mo Di from the Mohist School of Logic was the first to discover and develop the scientific principles of optics, camera obscura, and pinhole Greek mathematicians Aristotle and Euclid also independently described a pinhole camera in the.

Photography and camera

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Photography and camera

This easy-to understand, step-by-step guide to your model 6 or 6s iPhone fully explains how photos and videos can be captured, viewed, stored, organized, edited and shared with other people or other devices. Shop the latest DSLR cameras, mirrorless cameras, compact cameras, lenses and camera Accessories from the official Nikon USA site.

Choose the right photography camera and accessories. Darwin's Camera tells the extraordinary story of how Charles Darwin changed the way pictures are seen and made. In his illustrated masterpiece, Expression of the Emotions in Man and Animals (), Darwin introduced the idea of using photographs to illustrate a scientific theory--his was the first photographically illustrated science book ever published.

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