The History Of Photography

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    The History Of Photography

  • Thomas Young

    Suggested that the retina at the back of the eye contains three types of colour sensitive receptor, one sensitive to blue light, one to green and one to red. The brain interprets various combinations of these colours to form any other colour in the visible spectrum.

  • Wedgwood

    Produced silhouettes of opaque objects by contact printing them on silver nitrate coated paper however the images were unfixed and faded in daylight.

  • J. Nicephore Niepce

    Produced the first permanent image (Heliograph) using a camera obscura and white bitumen it required 8 hours to expose.

  • Fox Talbot

    Using his small "mousetrap" cameras he photographs the inside of his library window at Lacock Abbey, creating the first negative.

  • Daguerre

    Following experiments on his own he evolved a workable process (Daguerreotype). Silver iodide coated copper plate was exposed and developed by mercury to give a single direct positive. He removed the remaining silver iodide with a warm solution of cooking salt, they took 30 minutes to develop.