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
Love Has a Name the first preorder single from the album. "Love Has a Name", which featured Kim Walker-Smith, was released in July 2017 as the second preorder single from the album. "Flood the Earth" featuring Katie Torwalt was the third song to be availed for instant download, followed by "Make Us One" featuring Chris Quilala being released in August 2017 as the fourth and final preorder single from the album. The studio version of "Love Has a Name", featuring Kim Walker-Smith was released on October 6, 2017 as the lead single from the album. The week ending September 2, 2017 saw the sale