The strategy of “RGB-First”: Reflection on the colorimetric chain RGB / CMYK in print and digital communication.

A furtive glimpse of some of the techniques used in the early days of colour photography, from the Lumière brothers to Louis Dufay, the forgotten inventor.

If Louis Dufay’s name has fallen into oblivion, one of his inventions will be remembered: the heliophore, the kinetic paper that shone in the 60s.


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