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).
Snow Flower and the Secret Fan (film) Snow Flower and the Secret Fan (film) Snow Flower and the Secret Fan is a 2011 historical drama film based on the novel of the same name written by Lisa See. Directed by Wayne Wang, the film stars Gianna Jun, Li Bingbing, Archie Kao, Vivian Wu, and Hugh Jackman. In nineteenth century China, two girls named Snow Flower (Gianna Jun) and Lily (Li Bing Bing) are forever bonded together as sworn sisters. They are paired as "laotong" by a matchmaker who is also responsible for arranging their marriages. They are isolated by their families and communicate by writing in a