“Proof of life after death,” muses Roz Leibowitz of her collection of odd exposures. “Or at least bad photography. I prefer to believe in the former.” The wrong shots are often the best shots, the pictures that resonate and haunt. In the gallery below we can see people seemingly struck by beams of light. The image takes on an otherworldliness, the ethereal and strange captured on camera as if at once we’re seeing the now blended with echoes of memory and emotion. We’ve seen similar ghosts in the machine in William Hope’s spirit photographs. But they were frauds – elaborate parlour tricks to con and comfort. These pictures are shorn of guile and contrivance. They just are, inviting the viewer to think of a story.