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Thursday, February 14, 2013

Question 1465

Focussing onto a 20 cm × 25 cm (7.9 in × 9.8 in) pewter plate coated with bitumen of Judea, a mixture similar to asphalt, hardening the bitumen mixture by exposing it to about 8 hours of light, while the unexposed portions remained water soluble and then washing them away with a mixture of oil of lavender and white petroleum gave this. What is it called?


7 comments:

  1. The earliest surviving photograph of a scene from nature taken with a camera obscura-Invention of Photography by Nicephore Niepce.

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  2. View from window, first ever photograph...

    -Sukanto

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  3. answer is Heliography - meaning 'sun writing'

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  4. Oldest surviving photograph. View from a window

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  5. This is the first photograph taken. Not sure exactly, Window at La'Gras or something.

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  6. First Permanent Photograph...by the process of heliography...I reckon.

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