Overview: Finalists compete on an oil rig in the North Sea off the coast of Aberdeen. Their task is to take an aerial photograph of the platform without using an aircraft. Former RAF aerial photographer Tom Pratt is the guest judge. Heinz Wolff also takes the opportunity to look around and learn more about the rig itself. In 1983, Heinz Wolff devised an experiment to monitor the brainwaves of astronauts in the Challenger Space Shuttle.