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(Louisiana channel - David Hocney: Photoshop is boring)

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[David Hockney] The invention of photography was the invention of chemicals

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and in a way, chemical photography is now ended.

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It lasted - what? - 160 years.

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Now, nobody thought chemical photography would end.

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Nobody predicts that, do they?

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It ended - it certainly has ended now.

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Kodak stopped making fixative about eight years ago, I think.

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And the fixative was the invention.

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Daguerre did it his way

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and in England Fox Talbot, who was playing with cameras,

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and meaning, seeing these images -

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and remember, they sold them in color: you always see them in color;

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they were surprised that the photograph was black and white when they first came out -

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but, he said to Sir John Hershaw:

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"How can I -- how can we fix this image?"

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They could get it on paper, using silver

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but it didn't last long.

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And in fact, sir John Hershaw said:

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"Oh well, if you want to fix it, you need this, this and this"

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and wrote out the formula for fixative

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that was still being manufactured till eight years ago. (1:34)