For lighting he preferred sunlight reflected into the tomb by mirrors, sometimes over a distance of 100 feet, the light caught by reflectors that were kept constantly in motion to disperse the light evenly on the subject.[11] Burton also made use of two movable powerful electric standard lamps that Carter had installed in the dark tomb, producing an even light that could produce a high quality photograph on a slow exposure. To develop the pictures Burton used a previously cleared tomb nearby,[12] requiring constant journeys between tombs. Carter commented "These periodic dashes of his from tomb to tomb must have been a godsend to the crowd of curious visitors who kept vigil above the tomb, for there were many days during the winter in which it was the only excitement they had."[13] Burton made use of early colour autochrome plates, with the Illustrated London News publishing his colour photographs in November 1923.[10]