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).
She Has a Name intermission. According to reviewer Lana Michelin of the "Red Deer Advocate", Kooman's changes strengthened the emotional pull of the play. Because of the amount of interest in "She Has a Name" in 2011, not enough tickets were available for the initial run, and a second run was planned for the end of 2011. To finance a tour of the play, Burnt Thicket Theatre raised money through fundraisers, which included the 2011 Calgary Ride for Refuge. In August 2011, extracts from "She Has a Name" were read at a conference in Strathmore called Justice Tapestry. A reading of the play took