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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク pentamirror ： ウィキペディア英語版 pentamirror A pentamirror is an optical device used in the viewfinder systems of various single-lens reflex cameras instead of the pentaprism. It is used to reverse again the upside-down and laterally reversed image coming from the reflex mirror.〔Mike Stensvold. ''The Complete Idiot's Guide to Photography Like a Pro'', 2002, (page 26 ).〕 Instead of the solid block of glass of the prism in pentaprism system, here 3 mirrors are used to perform the same task. This is cheaper and lighter, but generally produces a viewfinder image of lower quality and brightness.〔David D. Busch. ''Digital Photography All-in-One Desk Reference for Dummies'', 2006, (page 106 ).〕 This optical device is often (more precisely) referred to as ''roof pentamirror'' because of the roof-like ridge.〔Paul R. Yoder. ''Opto-Mechanical Systems Design'', 2005, (page 435 ).〕 ==Notes== 〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「pentamirror」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.