Diaphragm (optics) curved blades improve the roundness of the iris opening. In a photograph, the number of blades that the iris diaphragm has can be guessed by counting the number of diffraction spikes converging from a light source or bright reflection. For an odd number of blades, there are twice as many spikes as there are blades. In case of an even number of blades, the two spikes per blade will overlap each other, so the number of spikes visible will be the number of blades in the diaphragm used. This is most apparent in pictures taken in the dark with small
She Has a Name rape scene as an actor. The premiere of "She Has a Name" was produced by Burnt Thicket Theatre in partnership with Raise Their Voice. The office of Joy Smith, MP for Kildonan—St. Paul, released a statement advertising the premiere of "She Has a Name". The premiere took place at the EPCOR Centre for the Performing Arts in Calgary in February 2011. Performances were scheduled to run on the centre's Motel stage between February 23 and March 5. Tickets quickly sold out. Four days after the premiere, Burnt Thicket Theatre moved the play to the Scott Block Theatre in Red Deer,