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Photography is the art, application, and practice of creating durable images by recording light, either electronically by means of an image sensoror chemically by means of a light-sensitive material such as photographic film. It is employed in many fields of science, manufacturing e.

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Typically, a lens is used to focus the light reflected or emitted from objects into a real image on the light-sensitive surface inside a camera during a timed exposure. With an electronic image sensor, this produces an electrical charge at each pixelwhich is electronically processed and stored in a digital image file for subsequent display or processing. The result with photographic emulsion is an invisible latent imagewhich is later chemically "developed" into a visible image, either negative or positive depending on the purpose of the photographic material and the method of processing.

A negative image on film is traditionally used to photographically create a positive image on a paper base, known as a printeither by using an enlarger or by contact printing. Several people may have coined the same new term from these roots independently. Hercules Florencea French painter and Reseach living in Campinas, Brazilused the French form of the word, photographiein private notes which a Brazilian historian believes were written in The first use of the word by the Phhotographic inventor became widely known after the research of Boris Kossoy in My Photographic Methodology And Research Practice On German newspaper Vossische Zeitung of 25 February contained an article entitled Photographiediscussing several priority claims — especially Henry Fox Talbot 's — regarding Daguerre's claim of invention. Photography is the result of combining several technical discoveries, relating to seeing an image and capturing the image. The discovery of the camera obscura "dark chamber" in Latin that provides an image of a scene dates back to ancient China.

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Greek mathematicians Aristotle and Euclid independently described a camera obscura in the 5th and 4th centuries BCE. The Arab physicist Ibn al-Haytham Alhazen — also invented a camera obscura as well as the first true pinhole camera. Leonardo da Vinci mentions natural camera obscura that are formed by dark caves on the edge of a sunlit valley. A hole in the cave wall will act as a pinhole camera Photobraphic project a laterally reversed, upside down image on a piece of paper. Renaissance painters used the camera obscura which, in fact, gives the optical rendering in color that dominates Western Art.

It is a box My Photographic Methodology And Research Practice On a small hole in one side, which allows specific light rays to enter, projecting an inverted image onto a viewing screen or paper. The birth of photography was then concerned with inventing means to capture and keep the image produced by the camera obscura. Albertus Magnus — discovered silver nitrate[21] and Georg Fabricius Methodollgy discovered silver chloride[22] and the techniques described in Ibn al-Haytham 's Book of Optics are capable of producing primitive photographs using medieval materials.

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Daniele Barbaro described a diaphragm in Around the yearBritish inventor Thomas Wedgwood made the first known attempt to capture the image in a camera obscura by means of a light-sensitive substance. He used paper or white leather treated with silver nitrate.

Although he succeeded in capturing the shadows of objects placed on the surface in direct sunlight, and even made shadow copies of paintings on glass, it was reported in that "the images formed by means of a camera obscura have been found too faint to produce, in any moderate time, an effect upon the nitrate of silver. In orhe made the View from the Window at Le Grasthe earliest surviving photograph from nature i. Https://amazonia.fiocruz.br/scdp/essay/is-lafayette-a-hidden-ivy/the-global-political-economy-a-washington-consensus.php partnership with Louis Daguerrehe worked out post-exposure processing methods that produced visually superior results and replaced the bitumen with a more light-sensitive resin, but hours of exposure in the camera were still required.

With an eye to eventual commercial exploitation, the partners opted for total secrecy. Daguerre's efforts culminated in what would Methodoligy be named the daguerreotype process.]