iris


iris
(or irising)
  an earlier cinematographic technique or wipe effect, in the form of an expanding or diminishing circle, in which a part of the screen is blacked out so that only a portion of the image can be seen by the viewer; usually the lens aperture is circular or oval shaped and is often expanded or contracted as the film rolls, often from one scene to the next; known also as diaphragm. The camera movment is often termed iris wipe, circle-in/circle-out, or iris-in/iris-out; also refers to the adjustable opening in the lens that allows light to pass through - the measurement for the iris opening is f-stop
  Example: Commonly used in silent films, such as The Birth of a Nation (1915), or here in Welles' The Magnificent Ambersons (1942) as Eugene's horseless carriage drives away

Glossary of cinematic terms . 2015.

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  • iris — iris …   Dictionnaire des rimes

  • iris — [ iris ] n. m. • XIIIe; lat. iris, iridis, gr. iris, iridos I ♦ Plante (iridacées), à rhizome ou à bulbe et à haute tige portant de grandes fleurs ornementales. Iris des marais, de Florence, d Espagne. Iris violet, jaune. L irone, principe… …   Encyclopédie Universelle

  • iris — 1. (i ris ) s. f. 1°   Nom d une divinité de la mythologie grecque, qui était la messagère des dieux, et qui, déployant son écharpe, produisait l arc en ciel.    Fig. •   Je tiens à bon augure, de ce que MLLE***, qui m avait abandonné ces jours… …   Dictionnaire de la Langue Française d'Émile Littré

  • Iris — typically refers to:* Iris (mythology), in Greek mythology, a messenger god and the personification of rainbows * Iris (color), an ambiguous color ranging from blue violet to violet, from the flower of the same nameIris may also refer to:In… …   Wikipedia

  • IRIS-T — Allgemeine Angaben Typ: Luft Luft Rakete …   Deutsch Wikipedia

  • IRIS-T — Maquette à ’échelle 1 de l’IRIS T (2005) Présentation Fonction Missile air air Constructeur Diehl BGT Defence Coût à l unité …   Wikipédia en Français

  • IRIS-T — Infra Red Imaging System Tail/Thrust Vector Controlled …   Википедия

  • iris — ÍRIS, (I) irisuri, s.n., (II) irişi, s.m. I. s.n. 1. Membrană circulară, colorată a ochiului, situată înaintea cristalinului, în mijlocul căreia se găseşte pupila. 2. Diafragmă cu diametru variabil, folosită la instrumentele optice pentru a regla …   Dicționar Român

  • iris — m. anat. Órgano muscular, contráctil y pigmentado que se halla situado por delante del cristalino y detrás de la córnea. Actúa como un diafragma regulando la cantidad de luz que incide sobre la retina mediante un orificio central (pupila) de… …   Diccionario médico

  • IRIS — can refer to: In technology * IRIS T, a German air to air missile * International Reactor Innovative and Secure, an advanced light water nuclear reactor design * Internal Rotary Inspection System, an ultrasonic method for the nondestructive… …   Wikipedia

  • iris — IRIS. s. f. Meteore qu on appelle vulgairement l Arc en ciel. Les couleurs de l iris. l iris se forme dans la nuë par l opposition du Soleil. Il sign. aussi, Une fleur qu on appelle autrement Flambe. L Iris se plaist dans les lieux marescageux.… …   Dictionnaire de l'Académie française

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