pentaprism
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Pentaprism — A pentaprism is a five sided reflecting prism used to deviate a beam of light by 90°. The beam reflects inside the prism twice, allowing the transmission of an image through a right angle without inverting it (that is, without changing the image… … Wikipedia
pentaprism — /pen teuh priz euhm/, n. a prism that has five faces, a pair of which are at 90° to each other; a ray entering one of the pair emerges from the other at an angle of 90° to its original direction: used esp. in single lens reflex cameras to reverse … Universalium
pentaprism — noun a prism having a five sided cross section with two silvered surfaces, giving a constant deviation of all rays of light through 90° … English new terms dictionary
pentaprism — pen·ta·prism … English syllables
pentaprism — n. a five sided prism with two silvered surfaces used in a viewfinder to obtain a constant deviation of all rays of light through 90° … Useful english dictionary
Пентапризма (pentaprism) — Пятиугольная стеклянная призма, используемая в видоискателях зеркальных фотокамер. Дает прямое (неперевернутое) изображение объекта … Глоссарий терминов бытовой и компьютерной техники Samsung
Пентапризма (pentaprism) — Пятиугольная стеклянная призма, используемая в видоискателях зеркальных фотокамер. Дает прямое (неперевернутое) изображение объекта … Глоссарий терминов бытовой и компьютерной техники Samsung
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
Comparison of digital single-lens reflex cameras — This list is incomplete; you can help by expanding it. Following list compares main features of digital single lens reflex cameras (DSLRs). Order of this list should be firstly by manufacturer alphabetically, secondly from high end to low end… … Wikipedia
Single-lens reflex camera — The single lens reflex (SLR) camera uses an automatic moving mirror system which permits the photographer to see exactly what will be captured by the film or digital imaging system, as opposed to non SLR cameras where the view through the… … Wikipedia
Pentax cameras — This article discusses the cameras – mainly 35 mm SLRs – manufactured by Hoya Corporation s Pentax division (ペンタックス, Pentakkusu?) and its predecessors, Pentax Corporation (ペンタックス株式会社, Pentakkusu Kabushiki gaisha … Wikipedia
