{"id":1443,"date":"2018-08-04T23:40:33","date_gmt":"2018-08-04T21:40:33","guid":{"rendered":"http:\/\/jlggb.net\/blog6\/?p=1443"},"modified":"2018-08-04T23:43:03","modified_gmt":"2018-08-04T21:43:03","slug":"la-profondeur-de-champ","status":"publish","type":"post","link":"http:\/\/jlggb.net\/blog6\/2018\/08\/04\/la-profondeur-de-champ\/","title":{"rendered":"La profondeur de champ"},"content":{"rendered":"<p><a href=\"http:\/\/jlggb.net\/blog6\/wp-content\/uploads\/2018\/08\/16-plaine-20180802.jpg\" data-rel=\"lightbox-image-0\" data-imagelightbox=\"0\" data-rl_title=\"\" data-rl_caption=\"\" title=\"\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1444\" src=\"http:\/\/jlggb.net\/blog6\/wp-content\/uploads\/2018\/08\/16-plaine-20180802.jpg\" alt=\"\" width=\"640\" height=\"480\" srcset=\"http:\/\/jlggb.net\/blog6\/wp-content\/uploads\/2018\/08\/16-plaine-20180802.jpg 2000w, http:\/\/jlggb.net\/blog6\/wp-content\/uploads\/2018\/08\/16-plaine-20180802-300x225.jpg 300w, http:\/\/jlggb.net\/blog6\/wp-content\/uploads\/2018\/08\/16-plaine-20180802-768x576.jpg 768w, http:\/\/jlggb.net\/blog6\/wp-content\/uploads\/2018\/08\/16-plaine-20180802-1024x768.jpg 1024w, http:\/\/jlggb.net\/blog6\/wp-content\/uploads\/2018\/08\/16-plaine-20180802-150x113.jpg 150w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><br \/>\nJeudi 2 ao\u00fbt 2018, 14h, rue de la Plaine, Paris 20e. La technique de la prise de vue, de l&rsquo;appareil photo, de la cam\u00e9ra, a fait conna\u00eetre cette dimension optique qui se nomme <em>profondeur de champ<\/em>. Il s&rsquo;agit de la zone, dans l&rsquo;espace que saisit l&rsquo;objectif, dont l&rsquo;image r\u00e9elle, sur la pellicule \u2014 sur le capteur \u00e9lectronique \u2014 est \u00e9galement nette. Ainsi, une focale longue donne une faible profondeur de champ et appelle donc un r\u00e9glage de la mise au point sur le sujet retenu. Aujourd&rsquo;hui, les appareils, ici un iPhone, ont un objectif minuscule, de tr\u00e8s grand angle, une sensibilit\u00e9 tr\u00e8s grande et donc un diaphragme tr\u00e8s petit. Ils donnent le plus souvent une profondeur tr\u00e8s grande. C&rsquo;est pourquoi la qualit\u00e9 d&rsquo;une profondeur de champ est vendue d\u00e9sormais pour l&rsquo;inverse, pour sa fa\u00e7on de faire ressortir la nettet\u00e9 d&rsquo;un visage dans le flou du d\u00e9cor. Mon nombre favori, photographi\u00e9 de tr\u00e8s pr\u00e8s, dans une lumi\u00e8re pas trop intense, s&rsquo;approprie ainsi la nettet\u00e9.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Jeudi 2 ao\u00fbt 2018, 14h, rue de la Plaine, Paris 20e. La technique de la prise de vue, de l&rsquo;appareil photo, de la cam\u00e9ra, a fait conna\u00eetre cette dimension optique qui se nomme profondeur de champ. Il s&rsquo;agit de la zone, dans l&rsquo;espace que saisit l&rsquo;objectif, dont l&rsquo;image r\u00e9elle, sur la pellicule \u2014 sur le &hellip; <a href=\"http:\/\/jlggb.net\/blog6\/2018\/08\/04\/la-profondeur-de-champ\/\" class=\"more-link\">Continuer la lecture de <span class=\"screen-reader-text\">La profondeur de champ<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7,94],"tags":[299,300,61],"class_list":["post-1443","post","type-post","status-publish","format-standard","hentry","category-enonciation","category-figuration","tag-champ","tag-nettete","tag-photographie"],"_links":{"self":[{"href":"http:\/\/jlggb.net\/blog6\/wp-json\/wp\/v2\/posts\/1443","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/jlggb.net\/blog6\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/jlggb.net\/blog6\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/jlggb.net\/blog6\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/jlggb.net\/blog6\/wp-json\/wp\/v2\/comments?post=1443"}],"version-history":[{"count":2,"href":"http:\/\/jlggb.net\/blog6\/wp-json\/wp\/v2\/posts\/1443\/revisions"}],"predecessor-version":[{"id":1446,"href":"http:\/\/jlggb.net\/blog6\/wp-json\/wp\/v2\/posts\/1443\/revisions\/1446"}],"wp:attachment":[{"href":"http:\/\/jlggb.net\/blog6\/wp-json\/wp\/v2\/media?parent=1443"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/jlggb.net\/blog6\/wp-json\/wp\/v2\/categories?post=1443"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/jlggb.net\/blog6\/wp-json\/wp\/v2\/tags?post=1443"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}