Real World Digital Photography, Third Edition

6. Multiple Exposures and Extending the Frame

Throughout the long history of still photography, photographs have traditionally been bound by their rectangular or square frames, and most have been the result of a single exposure. This does not apply to all photographs from the pre-digital era, of course. The use of multiple frames to show a sequence of action has been around since the days of Eadweard Muybridge, who in the nineteenth century used high-speed photography to show how animals and people moved. Multiple exposures have long been part of the texture of photographic history, occurring accidentally at first and then later used for creative effect by many artists, including Man Ray and David Hockney.

Digital photography offers new possibilities ...