True Colors : Color in Photography from 1849 to 1955 /anglaisPhotographys various colouring processes opened up a radiant new cosmos. The Albertinas unique collection sheds light on the complex topic of historical colour photos. It ranges from early coloured one offs to the emergence of mass produced colour photographs on a positive negative basis. The numerous techniques, many of them little known, and the resulting diverse applications reveal a revolution across our entire visual culture.