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 stylish doc should enjoy a nice arthouse run before becoming an essential presence on the DVD shelves of fashionistas everywhere.” Writing for "Variety", Jay Weissberg says, “Few names conjure ‘style’ with the zest of Diana Vreeland, and documentary "The Eye Has to Travel" gets the zing just right.” Currently, the film has a rating of 95% on Rotten Tomatoes, based on 63 reviews and an average score of 7.2/10. 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