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
As the Flower Withers As the Flower Withers As the Flower Withers was the first album by Yorkshire-based doom metal band My Dying Bride. The artwork was designed by Dave McKean. This is the only full-length My Dying Bride album on which lead vocalist Aaron Stainthorpe utilizes his trademark death growl as the sole vocal style. Many of the tracks on this album have appeared in a different form on other My Dying Bride releases. "Sear Me" was the first in a trilogy of songs to bear the title, followed by the keyboard- and violin-only "Sear Me MCMXCIII" in 1993 and "Sear Me III"