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{"id":2093954,"date":"2017-08-30T10:11:44","date_gmt":"2017-08-30T08:11:44","guid":{"rendered":"https:\/\/www.phonandroid.com\/?p=2093954"},"modified":"2023-12-18T17:05:58","modified_gmt":"2023-12-18T16:05:58","slug":"lg-v30-pourquoi-ouverture-f1-6-revolutionnaire","status":"publish","type":"post","link":"https:\/\/www.phonandroid.com\/lg-v30-pourquoi-ouverture-f1-6-revolutionnaire.html","title":{"rendered":"LG V30 : pourquoi son ouverture \u00e0 f\/1.6 est r\u00e9volutionnaire"},"content":{"rendered":"

Le LG V30 sera le premier smartphone dot\u00e9 d'un appareil photo \u00e0 f\/1.6. D\u00e9couvrez \u00e0 quoi correspond l'ouverture d'un appareil photo, et pourquoi cette caract\u00e9ristique pourrait faire du V30 le meilleur photophone de tous les temps.<\/strong><\/p>\n

\"lg<\/p>\n

Le 31 ao\u00fbt prochain, LG pr\u00e9sentera officiellement le LG V30. Toutefois, la firme sud-cor\u00e9enne a d\u00e9j\u00e0\u00a0communiqu\u00e9 quelques d\u00e9tails au sujet de son nouveau\u00a0flagship. Ainsi, l'un des teasers d\u00e9voil\u00e9s par la marque r\u00e9v\u00e8le que l'appareil photo arri\u00e8re \u00e0 double\u00a0capteur\u00a0du LG V30 sera dot\u00e9 d'une ouverture \u00e0 f\/1.6<\/a>.<\/p>\n

Jamais auparavant un appareil photo de smartphone n'avait offert une ouverture si large<\/strong>. Toutefois, si vous ne disposez pas de connaissances approfondies en photographie, cette caract\u00e9ristique ne vous dit probablement rien.<\/p>\n

Les appareils photo num\u00e9riques sont compos\u00e9s de plusieurs \u00e9l\u00e9ments. L'un de ces composants est le capteur d'image<\/strong>, qui sert \u00e0 capturer la lumi\u00e8re, et \u00e0 la transformer en signaux num\u00e9riques qui sont ensuite transform\u00e9s en une image num\u00e9rique. En parall\u00e8le, l'objectif de l'appareil photo sert \u00e0 guider la lumi\u00e8re vers le capteur.<\/p>\n

De mani\u00e8re g\u00e9n\u00e9rale, l'ouverture circulaire au sein d'un syst\u00e8me optique d\u00e9termine la quantit\u00e9 de lumi\u00e8re qui entre dans l'appareil<\/strong>. Une ouverture plus large permet de laisser entrer davantage de lumi\u00e8re vers le capteur.<\/p>\n

Sur les appareils photo haut de gamme, l'ouverture varie en fonction des conditions et du rendu que recherche le photographe. Les appareils photo de smartphones sont beaucoup plus petits, et capturent donc beaucoup moins de lumi\u00e8re<\/strong>. Il est donc inutile de limiter l'ouverture \u00e0 l'aide d'un m\u00e9canisme. Pour la plupart des APN de smartphones, le diam\u00e8tre de l'objectif correspond \u00e0 l'ouverture.<\/p>\n