adjustable aperture

См. также в других словарях:

• aperture — (f/number)    Lens opening. The opening in a lens system through which light passes.The size of aperture is either fixed or adjustable. Lens openings are usually calibrated in f numbers …   Forensic science glossary

• aperture — 1. An inlet or entrance to a cavity or channel. in anatomy, an open gap or hole. SEE ALSO: fossa, ostium, orifice, pore. 2. The diameter of the objective of a microscope. SYN …   Medical dictionary

• Aperture Ring — VP This is the adjustable ring on a cameras lens that allows for exposure control …   Audio and video glossary

• Iron sight — Sight picture through iron sights of an H K MP5 submachine gun. The annular shroud around the front post sight is aligned with the rear peep sight to ensure the weapon is properly trained. Iron sights are a system of shaped alignment markers… …   Wikipedia

• Diopter sight — Target shooting diopter of a 10 metre air rifle with a mounted occluder for the non aiming eye The diopter is an aperture sight component used to assist the aiming of a guns/devices, usually those intended to launch projectiles, such as firearms …   Wikipedia

• Nimslo — film chamber The Nimslo is a …   Wikipedia

• History of the single-lens reflex camera — The history of the single lens reflex camera predates the invention of photography in 1826/27 by one and a half centuries with the use of a reflex mirror in a camera obscura first described in 1676. Such SLR devices were popular as drawing aids… …   Wikipedia

• Iris — F/A/V A variable aperture that controls exposure or the amount of light which is released from a lighting unit. (Camera/Lighting) WikiV An adjustable aperture built into a camera lens to permit control of light transmission through the lens.[7] …   Audio and video glossary

• AR-10 — Infobox Weapon name=AR 10 caption=The AR 10. origin=flag|United States type=Battle rifle is ranged=yes service=1960–1976 (Portugal) 1958–1985 (Sudan) used by=See Users wars=Angola, Mozambique, Sudan, Dominican Republic, Portuguese Timor… …   Wikipedia

• Paper print — Paper prints were an early mechanism to establish the copyright of motion pictures by depositing them with the Library of Congress. The first and foremost user of this prosecc was Thomas Alva Edison). To that end, beginning in 1893, Edison’s… …   Wikipedia

• eye disease — Introduction  any of the diseases or disorders that affect the human eye (eye, human).       This article briefly describes the more common diseases of the eye and its associated structures, the methods used in examination and diagnosis, and the… …   Universalium