Idris Khan is a British contemporary artist, whose artwork involves layering multiple images in order to produce a composite photograph. His final images are usually blurred, almost beyond recognition. I really like Khan's work. It evokes an ethereal, ghostly feel to the subject. When I first saw Khan's image of gas holders (below) it made me think back to Bernd and Hilla Becher's typologies. The reason for this is the black and white treatment of an industrial structure and photographing it in portrait. It was very reminiscent of their style.
After further research, I discovered that the image above was in fact created from every prison type gasholder that the Bechers had photographed, such as those below.
Just as the Bechers were documenting the disappearing German infrastructure, so Khan is providing a visual record of the disappearance of the Victorian gas tower.
Khan's work reminds me of Stephanie Jung's, however the way they work is different. Whilst Khan's layered images represent the passing of a longer period of time, Jung's city composites are based on a series of exposures made on the same day.