telescopic viewfinder

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• telescope —    , telescopic lens    A telescope is an optical device for viewing directly or photographically distant subjects by making them look larger and nearer. A telescope is usually cylindrical, gathering visible light by means of the refraction… …   Glossary of Art Terms

• Parallax — For other uses, see Parallax (disambiguation). A simplified illustration of the parallax of an object against a distant background due to a perspective shift. When viewed from Viewpoint A , the object appears to be in front of the blue square.… …   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

• Red dot sight — A red dot sight (also called a reflex sight or, for certain models, a reflex scope) is a non magnifying firearm sight that uses an illuminated reticle, typically in the form of a red dot. [cite journal |url=http://findarticles.com/p/articles/mi… …   Wikipedia

• Hasselblad — This article is about Victor Hasselblad AB, the Swedish company. For the founder of the company, Victor Hasselblad, see Victor Hasselblad. For Hasselblad Masters, see Hasselblad Masters Award. For the Hasselblad Award or the Hasselblad Foundation …   Wikipedia

• Leica M4 — Infobox camera camera name = Leica M4 caption = Leica M4 with 50mm f/2 and proxiphotography glasses type = 35 mm camera lens mount = Leica M mount focus = manual exposure = manual flash = standard accessory shoe with separate bulb and electronic… …   Wikipedia

• Movie projector — This article is concerned with technical aspects of moving film projection. For non film movie projection, see digital cinema. For historical aspects, see the article history of cinema. 35 mm movie projector in operation …   Wikipedia

• Panjandrum — Panjandrum, known also as the The Great Panjandrum, was a massive, rocket propelled, explosive laden cart designed by the British military during World War II. It was one of a number of highly experimental projects, including Hajile and the… …   Wikipedia

• parallax — parallactic /par euh lak tik/, adj. parallactically, adv. /par euh laks /, n. 1. the apparent displacement of an observed object due to a change in the position of the observer. 2. Astron. the apparent angular displacement of a celestial body due …   Universalium

• camera — I (New American Roget s College Thesaurus) n. See optical instruments. II (Roget s IV) n. Kinds of cameras include: camera obscura, astrograph, camera lucida, camcorder, cinecamera, X ray machine, image orthicon, photochronograph, photogrammeter …   English dictionary for students

• finder — (Roget s IV) n. 1. [One who discovers a thing] Syn. discoverer, spotter, acquirer, appropriator, claimant, lucky searcher, search party. Ant. loser*, owner, stray. 2. [A locating device] Syn. sight, telescopic sight, bombsight, gunsight,… …   English dictionary for students