‘Enter’ by Justine Varga, a finalist in the 2015 Bowness Photography Prize. The image is in fact a piece of film which was used as a doormat, thereby exposing it both to light and to physical contact. In her artist’s statement she detailed how it had been exposed for three months. ‘It is a palimpsest for a moving image as layers of sediment; a photographic remembrance that shifts the decisive moment, stretches it out and collapses it again,’ she said.

Photograph: Justine Varga