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
The Journey of Flower The Journey of Flower The Journey of Flower () is a 2015 Chinese television series starring Wallace Huo and Zhao Liying. It is based on the fictional novel of the same name written by Fresh Guoguo, which is inspired from Daoist legends regarding the path to immortality. The series was broadcast on Hunan TV every Wednesdays and Thursdays for two episodes per day, from 9 June to 7 September 2015. Hua Qiangu (Zhao Liying) is an unlucky orphan who is born with a strange scent which attracts demons, and therefore is hated and feared by all the villagers. When she