Diaphragm (optics) bright spots, for example night cityscapes. Some cameras, such as the Olympus XA or lenses such as the MC Zenitar-ME1, however, use a two-bladed diaphragm with right-angle blades creating a square aperture. Similarly, out-of-focus points of light (circles of confusion) appear as polygons with the same number of sides as the aperture has blades. If the blurred light is circular, then it can be inferred that the aperture is either round or the image was shot "wide-open" (with the blades recessed into the sides of the lens, allowing the interior edge of the lens barrel to effectively become the iris).
Eye of the Beholder (film) Eye of the Beholder (film) Eye of the Beholder is a 1999 Canadian-British-Australian mystery thriller film that employs magical realism. The film, based on Marc Behm's novel of the same name and a remake of Claude Miller's 1983 French thriller "Deadly Circuit", is directed and adapted by Stephan Elliott. Starring Ewan McGregor and Ashley Judd, the film is an international co-production of Canada, the United Kingdom, and Australia. Stephen Wilson aka "The Eye" (Ewan McGregor) is an intelligence agent whose current assignment is to track down the socialite son of his wealthy boss and find out what trouble he has