The science of making colour

The latest digital imaging techniques are literally shedding new light on the ingenious variety of materials that have been used over the centuries to create artists’ paint pigments. A new exhibition at the National Gallery in London is looking at the history of colour making over time. Preparations for the exhibition have been given a helping hand with a state-of the art positioning easel that gives the ability to examine great works of art in unprecedented detail. The easel was provided through the sup