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).
Diana Vreeland: The Eye Has to Travel Diana Vreeland: The Eye Has to Travel Diana Vreeland: The Eye Has to Travel is a 2011 documentary about the life and career of Diana Vreeland, a fashion legacy famous for her time at "Harper’s Bazaar" and "Vogue". The film was directed and produced by Lisa Immordino Vreeland (Diana’s granddaughter-in-law), Bent-Jorgen Perlmutt, and Frédéric Tcheng. It premiered at the 2011 Venice International Film Festival and the Telluride Film Festival. It has a total running time of 86 minutes, and can be seen with English, French, and Italian subtitles. The film features recorded audio and filmed interviews of Vreeland, as well