Diaphragm (optics) photographic lens is called an iris diaphragm. In the early years of photography, a lens could be fitted with one of a set of interchangeable diaphragms , often as brass strips known as Waterhouse stops or Waterhouse diaphragms. The iris diaphragm in most modern still and video cameras is adjusted by movable blades, simulating the iris of the eye. The diaphragm has two to twenty blades (with most lenses today featuring between five and ten blades), depending on price and quality of the device in which it is used. Straight blades result in polygon shape of the diaphragm opening, while
She Has a Name with you long after the lights have gone up." She Has a Name She Has a Name is a play about human trafficking written by Andrew Kooman in 2009 as a single act and expanded to full length in 2010. It is about the trafficking of children into sexual slavery and was inspired by the deaths of 54 people in the Ranong human-trafficking incident. Kooman had previously published literature, but this was his first full-length play. The stage premiere of "She Has a Name" was directed by Stephen Waldschmidt in Calgary, Alberta in February 2011. From May to October 2012,