Diaphragm (optics) the lens. The centre of the diaphragm's aperture coincides with the optical axis of the lens system. Most modern cameras use a type of adjustable diaphragm known as an iris diaphragm, and often referred to simply as an iris. See the articles on aperture and f-number for the photographic effect and system of quantification of varying the opening in the diaphragm. A natural optical system that has a diaphragm and an aperture is the human eye. The iris is the diaphragm, and the opening in the iris of the eye (the pupil) is the aperture. An analogous dev in a
The Flower Kings Stolt's brother Michael on bass and Tomas Bodin on keyboards. The five performed their first gig on 20 August 1994 at an outdoor festival in Uppsala, Stolt's hometown and the city where "The Flower King" was recorded. After they decided to become a full time band, they officially adopted the name The Flower Kings, named after Stolt's album. Stolt had produced a list of potential titles for the record, one of which was "The Flower King", and chose it because of its positive meaning and its reference to the hippie era of the 1960s. After performing a series of concerts