Painting with light - John Blakemore
Unexposed photographic paper is akin to John Locke’s tabula rasa. Translated from the Latin, the surface was a ‘clean slate’, a uniform grey, ready to receive the white chalk marks of thought and experience. He qualified this by saying that at birth the mind is a “white paper, void of all characters, without ideas”. So too in the photographer’s darkroom, the unexposed photographic paper is an unblemished white surface.