Seven Days

The location of this film is by a small stream on the northern slopes of Mount Carningly in southwest Wales. The seven days were shot consecutively and appear in that same order. Each day starts at the time of local sunrise and ends at the time of local sunset. One frame was taken every ten seconds throughout the film. The camera was mounted on an Equatorial Stand, which is a piece of equipment used by astronomers to track the stars. Rotating at the same speed as the earth, the camera is always pointing at either its own shadow or at the sun. Selection of image (sky or earth; sun or shadow) was controlled by the extent of cloud coverage. If the sun was out the camera was turned towards its own shadow; if it was in the camera was turned towards the sun. (Chris Welsby)