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Photography- art test two

Photography- art test two - Photography The Camera Obscura...

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Photography The Camera Obscura -- literally "dark room"-- is a phenomenon known since the Renaissance (from his writings, we know Leonardo knew about it). In a dark room, if there is a small hole in one wall, the light passing through the hole will project onto the opposite wall an inverted image of whatever is outside the room. A tabletop camera obscura was invented at least by the Baroque period, and we're pretty sure Vermeer used one as a drawing aid. A mirror reflected the image onto a glass on the top of the box, allowing the artist to trace the image. From then on artists and scientists were trying to find a way, using chemicals, to make the image permanent. Success was achieved in 1839. Photography (literally to write with light) is based on the light-sensitivity of silver salts. Daguerre's picture in 1839 of the boulevard outside his studio was the first photograph. From an exposure time of 8 hours, Daguerre was able to reduce the time to one minute within 10 years. Suddenly the average person could get a portrait of himself. Two early photographers who made lots of portraits were Julia Cameron in England, and Nadar in Paris. Cameron pioneered soft focus and close-ups, and Nadar pioneered aerial photography, from his hot-air balloon.
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