This film is about the representation of light through an exploration of time-lapse photography. The sky, the roof of a building and some tree tops were framed in a fixed position to enable a comparison study of changing light to be made over a period of time. The film was shot ‘in camera’ taking 1 frame every 30 seconds for 31 consecutive days from new moon to new moon. The filming took place for 90 minutes at dawn, starting before daybreak when it was still dark, then again for 90 minutes at dusk filming into darkness. The starting time for the dawn section was adjusted and made later each day and continuously made earlier for the dusk to compensate for the changing times of sunrise and sunset. The aperture was constant at F2 for all of the filming.
Filming started in darkness each morning for each of the dawn sections, when the image was under exposed, and as it became lighter an image gradually began to register on the film stock. Then, subject to the of the morning light and the prevailing weather conditions, the image became overexposed and gradually disappeared in the morning light. However over exposure did not always occur if the weather for the morning filming session turned out to be dull and overcast.This whole procedure is reversed for evening sections, starting from over exposure before sunset, and gradually to under exposure at dusk, and then in to darkness after the sun had set.
The unpredictability and anticipation of what might be recorded on film each day at dawn and dusk, over the period of 31 consecutive days, made this an interesting but challenging experience and filming discipline. The time lapse appears to create a cycle and light rhythm which is distinctive to film. This film has also been presented in the form of still film frames which depict an overall visual gradient of changing light.