{"id":8282,"date":"2024-11-15T06:37:53","date_gmt":"2024-11-15T06:37:53","guid":{"rendered":"https:\/\/pierretlambert.com\/?p=8282"},"modified":"2024-11-23T22:02:47","modified_gmt":"2024-11-23T22:02:47","slug":"modes-mesure-exposition-photographie","status":"publish","type":"post","link":"https:\/\/pierretlambert.com\/fr\/modes-mesure-exposition-photographie\/","title":{"rendered":"Modes de mesure d\u2019exposition en photographie : Spot, \u00c9valuatif, Matrice \u2013 Guide et Astuces"},"content":{"rendered":"\t\t<div data-elementor-type=\"widget\" data-elementor-id=\"8169\" class=\"elementor elementor-8169\" data-elementor-post-type=\"elementor_library\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-13d74196 elementor-toc--minimized-on-tablet elementor-widget elementor-widget-table-of-contents\" data-id=\"13d74196\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;headings_by_tags&quot;:[&quot;h2&quot;],&quot;exclude_headings_by_selector&quot;:[],&quot;marker_view&quot;:&quot;numbers&quot;,&quot;no_headings_message&quot;:&quot;Aucun titre n\\u2019a \\u00e9t\\u00e9 trouv\\u00e9 sur cette page.&quot;,&quot;minimize_box&quot;:&quot;yes&quot;,&quot;minimized_on&quot;:&quot;tablet&quot;,&quot;hierarchical_view&quot;:&quot;yes&quot;,&quot;min_height&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;min_height_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;min_height_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]}}\" data-widget_type=\"table-of-contents.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-toc__header\">\n\t\t\t\t\t\t<h4 class=\"elementor-toc__header-title\">\n\t\t\t\tTable des mati\u00e8res\t\t\t<\/h4>\n\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-toc__toggle-button elementor-toc__toggle-button--expand\" role=\"button\" tabindex=\"0\" aria-controls=\"elementor-toc__13d74196\" aria-expanded=\"true\" aria-label=\"Ouvrir la table des mati\u00e8res\"><i aria-hidden=\"true\" class=\"fas fa-chevron-down\"><\/i><\/div>\n\t\t\t\t<div class=\"elementor-toc__toggle-button elementor-toc__toggle-button--collapse\" role=\"button\" tabindex=\"0\" aria-controls=\"elementor-toc__13d74196\" aria-expanded=\"true\" aria-label=\"Fermer la table des mati\u00e8res\"><i aria-hidden=\"true\" class=\"fas fa-chevron-up\"><\/i><\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<div id=\"elementor-toc__13d74196\" class=\"elementor-toc__body\">\n\t\t\t<div class=\"elementor-toc__spinner-container\">\n\t\t\t\t<i class=\"elementor-toc__spinner eicon-animation-spin eicon-loading\" aria-hidden=\"true\"><\/i>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\n\n\n\n<p>Photographier c\u2019est l\u2019art de capturer la lumi\u00e8re. Le mot \u00ab photographie \u00bb lui-m\u00eame signifie \u00e9crire avec la lumi\u00e8re (du grec ancien \u00ab photo \u00bb la lumi\u00e8re, et \u00ab grapho \u00bb \u00e9crire). Prendre une photo c\u2019est donc cr\u00e9er une \u0153uvre avec de la lumi\u00e8re. En fonction de la quantit\u00e9 de lumi\u00e8re re\u00e7ue, c\u2019est-\u00e0-dire de l\u2019exposition, le rendu sera plus ou moins \u00e9quilibr\u00e9.<\/p>\n\n\n\n<p>Il fut un temps o\u00f9, avant de prendre une photo, les photographes devaient mesurer la lumi\u00e8re ambiante avec un appareil (un posem\u00e8tre), afin de conna\u00eetre pr\u00e9cis\u00e9ment l\u2019intensit\u00e9 de celle-ci et effectuer les r\u00e9glages du bo\u00eetier en cons\u00e9quence. De nos jours, nos appareils poss\u00e8dent un syst\u00e8me int\u00e9gr\u00e9 mesurant directement la quantit\u00e9 de lumi\u00e8re.&nbsp;<\/p>\n\n\n\n<p>Les appareils photos num\u00e9riques proposent plusieurs modes de mesure de la lumi\u00e8re. Ces modes influencent les param\u00e8tres que l\u2019appareil va choisir et donc le r\u00e9sultat final de la photo. Je vous explique le fonctionnement de la mesure d\u2019exposition, quels sont les diff\u00e9rents modes de mesure, dans quelles circonstances les utiliser et vous d\u00e9voile quelques astuces pour r\u00e9ussir \u00e0 correctement exposer vos photos.<\/p>\n\n\n\n<p>Pour comprendre le concept en d\u00e9tail, regardez cette vid\u00e9o o\u00f9 je partage mes astuces pour r\u00e9ussir votre exposition avec le bon mode de mesure.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<span class=\"embed-youtube\" style=\"text-align:center; display: block;\"><iframe class=\"youtube-player\" width=\"800\" height=\"450\" src=\"https:\/\/www.youtube.com\/embed\/10zAIDqxpj4?version=3&#038;rel=1&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;fs=1&#038;hl=fr-FR&#038;autohide=2&#038;wmode=transparent\" allowfullscreen=\"true\" style=\"border:0;\" sandbox=\"allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox\"><\/iframe><\/span>\n<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Qu\u2019est-ce que la mesure d\u2019exposition en photographie ?<\/h2>\n\n\n\n<p>L\u2019appareil photo num\u00e9rique, en mesurant les diff\u00e9rents niveaux de lumi\u00e8re r\u00e9partis sur l\u2019image, va proposer une exposition moyenne pr\u00e9sentant un \u00e9quilibre entre les hautes et les basses lumi\u00e8res. Les diff\u00e9rents modes de mesure vont fournir au bo\u00eetier des indications distinctes qui lui permettront de proposer au photographe des param\u00e8tres d\u2019exposition correcte.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">&#8211; Le concept du gris moyen<\/h3>\n\n\n\n<p>Pour mesurer la quantit\u00e9 de lumi\u00e8re (qui peut \u00eatre r\u00e9fl\u00e9chie ou directe), l\u2019appareil suit ce que l\u2019on appelle le concept du gris moyen.&nbsp; Sur une grille qui va partir du blanc jusqu&rsquo;au noir, l\u2019appareil va essayer d&rsquo;exposer correctement l\u2019image pour le gris moyen, gris de r\u00e9f\u00e9rence qui a \u00e9t\u00e9 fix\u00e9 par convention \u00e0 18 %.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img data-recalc-dims=\"1\" fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/mode-mesure-exposition-matrice.jpg?resize=800%2C450&#038;ssl=1\" alt=\"echelle du gris moyen en photographie exposition\" class=\"wp-image-8283\" srcset=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/mode-mesure-exposition-matrice.jpg?w=944&ssl=1 944w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/mode-mesure-exposition-matrice.jpg?resize=300%2C169&ssl=1 300w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/mode-mesure-exposition-matrice.jpg?resize=768%2C432&ssl=1 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p>Cette notion de gris moyen \u00e0 18 % est importante, car elle permet de comprendre pourquoi il peut arriver parfois qu\u2019en voulant prendre une photo dans un environnement tr\u00e8s blanc (\u00e0 la neige par exemple), la photo est sous-expos\u00e9e. En r\u00e9alit\u00e9, l&rsquo;appareil a compris qu\u2019il y avait un&nbsp; surplus de lumi\u00e8re et a r\u00e9duit l\u2019exposition pour le compenser.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img data-recalc-dims=\"1\" decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/exposition-gris-moyen-neige-photographie.jpg?resize=800%2C450&#038;ssl=1\" alt=\"Sous Exposition en photographie bas\u00e9e sur le gris moyen dans la neige\" class=\"wp-image-8285\" srcset=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/exposition-gris-moyen-neige-photographie.jpg?w=944&ssl=1 944w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/exposition-gris-moyen-neige-photographie.jpg?resize=300%2C169&ssl=1 300w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/exposition-gris-moyen-neige-photographie.jpg?resize=768%2C432&ssl=1 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p>L\u2019appareil fait donc bien son travail d\u2019exposer pour avoir le gris moyen, cependant dans notre cas le r\u00e9sultat visuel n\u2019est pas celui que l\u2019on veut.&nbsp;On voudrait quelque chose comme \u00e7a:<\/p>\n\n\n\n<div class=\"wp-block-jetpack-tiled-gallery aligncenter is-style-rectangular\"><div class=\"\"><div class=\"tiled-gallery__gallery\"><div class=\"tiled-gallery__row\"><div class=\"tiled-gallery__col\" style=\"flex-basis:54.53350%\"><figure class=\"tiled-gallery__item\"><img decoding=\"async\" srcset=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/219-20210131-tobi_DSC5127-819x1024.jpg?strip=info&#038;w=600&#038;ssl=1 600w,https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/219-20210131-tobi_DSC5127-819x1024.jpg?strip=info&#038;w=900&#038;ssl=1 900w,https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/219-20210131-tobi_DSC5127-819x1024.jpg?strip=info&#038;w=1200&#038;ssl=1 1200w,https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/219-20210131-tobi_DSC5127-819x1024.jpg?strip=info&#038;w=1210&#038;ssl=1 1210w\" alt=\"\" data-height=\"1512\" data-id=\"8344\" data-link=\"https:\/\/pierretlambert.com\/fr\/modes-mesure-exposition-photographie\/219-20210131-tobi_dsc5127\/\" data-url=\"https:\/\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/219-20210131-tobi_DSC5127-819x1024.jpg\" data-width=\"1210\" src=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/219-20210131-tobi_DSC5127-819x1024.jpg?ssl=1\" data-amp-layout=\"responsive\" tabindex=\"0\" role=\"button\" aria-label=\"Ouvrir l\u2019image 1 sur 2 en plein \u00e9cran\"\/><\/figure><\/div><div class=\"tiled-gallery__col\" style=\"flex-basis:45.46650%\"><figure class=\"tiled-gallery__item\"><img decoding=\"async\" srcset=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/201-20200117-PR300931-683x1024.jpg?strip=info&#038;w=600&#038;ssl=1 600w,https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/201-20200117-PR300931-683x1024.jpg?strip=info&#038;w=900&#038;ssl=1 900w,https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/201-20200117-PR300931-683x1024.jpg?strip=info&#038;w=1200&#038;ssl=1 1200w,https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/201-20200117-PR300931-683x1024.jpg?strip=info&#038;w=1366&#038;ssl=1 1366w\" alt=\"\" data-height=\"2048\" data-id=\"8346\" data-link=\"https:\/\/pierretlambert.com\/fr\/modes-mesure-exposition-photographie\/201-20200117-pr300931\/\" data-url=\"https:\/\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/201-20200117-PR300931-683x1024.jpg\" data-width=\"1366\" src=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/201-20200117-PR300931-683x1024.jpg?ssl=1\" data-amp-layout=\"responsive\" tabindex=\"0\" role=\"button\" aria-label=\"Ouvrir l\u2019image 2 sur 2 en plein \u00e9cran\"\/><\/figure><\/div><\/div><\/div><\/div><\/div>\n\n\n\n<p><em>Photos \u00e9dit\u00e9es avec mes <a href=\"https:\/\/pierretlambert.com\/presetsfr\" target=\"_blank\" rel=\"noreferrer noopener\">presets Lightroom disponibles ici<\/a>.<\/em><\/p>\n\n\n\n<p>En fonction du mode de mesure choisi, le r\u00e9sultat propos\u00e9 par l\u2019appareil sera tr\u00e8s diff\u00e9rent.&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img data-recalc-dims=\"1\" decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/mode-mesure-evaluatif-sony.jpg?resize=800%2C450&#038;ssl=1\" alt=\"influence du mode de mesure en photographie sur l'exposition de son image\" class=\"wp-image-8287\" srcset=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/mode-mesure-evaluatif-sony.jpg?w=945&ssl=1 945w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/mode-mesure-evaluatif-sony.jpg?resize=300%2C169&ssl=1 300w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/mode-mesure-evaluatif-sony.jpg?resize=768%2C432&ssl=1 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">&#8211; Comment visualiser directement l&rsquo;influence du mode de mesure d&rsquo;exposition sur son \u00e9cran d&rsquo;appareil photo<\/h3>\n\n\n\n<p>Pour avoir un aper\u00e7u de l\u2019exposition directement sur l\u2019\u00e9cran ou dans le viseur du boitier, je conseille d\u2019activer la fonction \u00ab AFFICHAGE LIVE VIEW \u00bb&nbsp; que l\u2019on peut retrouver dans le menu \u00e0 la rubrique \u00ab PRISE DE VUE \u00bb chez Sony (PRISE DE VUE \u2013 AFFICH. PR. DE VUE \u2013 REGL. AFF. LIVE VIEW).&nbsp;<\/p>\n\n\n\n<p>Ainsi, avec ce r\u00e9glage, l\u2019affichage correspond directement au r\u00e9sultat final de la photo et il change concomitamment \u00e0 la modification d\u2019un param\u00e8tre.&nbsp;<\/p>\n\n\n\n<p>D\u00e8s qu\u2019une donn\u00e9e du triangle d\u2019exposition (ISO, vitesse ou ouverture) est modifi\u00e9e ou que la molette de compensation d\u2019exposition est utilis\u00e9e, l\u2019image va s\u2019assombrir ou s\u2019\u00e9claircir en direct.&nbsp;<\/p>\n\n\n\n<p>C\u2019est vraiment une astuce permettant de gagner du temps et d\u2019avoir un retour tr\u00e8s rapide sur l\u2019exposition de la photo. Elle \u00e9vite la mauvaise surprise de d\u00e9couvrir devant son ordinateur des photos tr\u00e8s diff\u00e9rentes de ce que l\u2019on voyait dans le viseur au moment de la prise de vue.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/live-view-display-sony.jpg?resize=800%2C450&#038;ssl=1\" alt=\"Comment activer le live view sur Sony\" class=\"wp-image-8289\" srcset=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/live-view-display-sony.jpg?w=944&ssl=1 944w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/live-view-display-sony.jpg?resize=300%2C169&ssl=1 300w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/live-view-display-sony.jpg?resize=768%2C432&ssl=1 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<iframe\n  src=\"https:\/\/link.coursecreator360.com\/widget\/form\/k7wQE18x7k6Z7T8DnoJF\"\n  style=\"width:100%;height:100%;border:none;border-radius:3px\"\n  id=\"inline-k7wQE18x7k6Z7T8DnoJF\" \n  data-layout=\"{'id':'INLINE'}\"\n  data-trigger-type=\"alwaysShow\"\n  data-trigger-value=\"\"\n  data-activation-type=\"alwaysActivated\"\n  data-activation-value=\"\"\n  data-deactivation-type=\"neverDeactivate\"\n  data-deactivation-value=\"\"\n  data-form-name=\"FR - Blog In Line - Fiche R\u00e9glages\"\n  data-height=\"480\"\n  data-layout-iframe-id=\"inline-k7wQE18x7k6Z7T8DnoJF\"\n  data-form-id=\"k7wQE18x7k6Z7T8DnoJF\"\n  title=\"FR - Blog In Line - Fiche R\u00e9glages\"\n      >\n<\/iframe>\n<script src=\"https:\/\/link.coursecreator360.com\/js\/form_embed.js\"><\/script>\n\n\n\n<h2 class=\"wp-block-heading\">Les diff\u00e9rents modes de mesure d\u2019exposition<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">&#8211; Le mode de mesure matriciel ou \u00e9valuatif (Multi chez Sony)<\/h3>\n\n\n\n<figure class=\"wp-block-image size-full\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/mode-mesure-multi-sony.jpg?resize=800%2C450&#038;ssl=1\" alt=\"Mode de mesure d\u2019exposition multi sur appareil Sony\" class=\"wp-image-8291\" srcset=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/mode-mesure-multi-sony.jpg?w=944&ssl=1 944w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/mode-mesure-multi-sony.jpg?resize=300%2C169&ssl=1 300w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/mode-mesure-multi-sony.jpg?resize=768%2C432&ssl=1 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p>&nbsp;Il s\u2019agit du mode propos\u00e9 par d\u00e9faut par la plupart des appareils photos num\u00e9riques. Ce mode analyse la lumi\u00e8re sur l\u2019ensemble de l\u2019image pour proposer une exposition moyenne.&nbsp;<\/p>\n\n\n\n<p>C\u2019est un mode convenant \u00e0 une sc\u00e8ne qui doit \u00eatre expos\u00e9e uniform\u00e9ment comme c\u2019est souvent le cas dans le quotidien.&nbsp;<\/p>\n\n\n\n<p>En revanche, dans une situation de fort contraste, o\u00f9 le photographe voudrait exposer correctement pour les hautes lumi\u00e8res, ou au contraire exposer correctement pour les ombres ce mode d\u2019exposition ne conviendra pas et il faudra en choisir un plus adapt\u00e9.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">&#8211; Le mode de mesure centre ou mesure pond\u00e9r\u00e9e centrale<\/h3>\n\n\n\n<figure class=\"wp-block-image size-full\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/mode-mesure-centre.jpg?resize=800%2C450&#038;ssl=1\" alt=\"mode de mesure central menu sony\" class=\"wp-image-8293\" srcset=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/mode-mesure-centre.jpg?w=944&ssl=1 944w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/mode-mesure-centre.jpg?resize=300%2C169&ssl=1 300w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/mode-mesure-centre.jpg?resize=768%2C432&ssl=1 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p>&nbsp;En utilisant ce mode,&nbsp; l&rsquo;appareil va mesurer l\u2019exposition de l\u2019ensemble de l\u2019image, mais accorder une place pr\u00e9pond\u00e9rante \u00e0 l\u2019information donn\u00e9e par la partie centrale de l\u2019image.&nbsp;<\/p>\n\n\n\n<p>La mesure pond\u00e9r\u00e9e est tr\u00e8s pratique lorsque le sujet va \u00eatre centr\u00e9, et qu\u2019il y a des zones tr\u00e8s claires ou tr\u00e8s sombres sur les c\u00f4t\u00e9s. Toutefois dans la plupart des situations, surtout lorsque l\u2019on utilise la technique de recomposition ou que le sujet se d\u00e9place, je d\u00e9conseille d\u2019utiliser ce mode. Il prend en effet la mesure au centre de la photo alors que le sujet ne s\u2019y trouve plus.<br><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">&#8211; Le mode de mesure spot<\/h3>\n\n\n\n<figure class=\"wp-block-image size-full\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/mode-mesure-spot.jpg?resize=800%2C450&#038;ssl=1\" alt=\"mode de mesure spot sur sony\" class=\"wp-image-8295\" srcset=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/mode-mesure-spot.jpg?w=944&ssl=1 944w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/mode-mesure-spot.jpg?resize=300%2C169&ssl=1 300w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/mode-mesure-spot.jpg?resize=768%2C432&ssl=1 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/mode-mesure-spot-sombre.jpg?resize=800%2C450&#038;ssl=1\" alt=\"mode de mesure spot trop sombre\" class=\"wp-image-8297\" srcset=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/mode-mesure-spot-sombre.jpg?w=944&ssl=1 944w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/mode-mesure-spot-sombre.jpg?resize=300%2C169&ssl=1 300w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/mode-mesure-spot-sombre.jpg?resize=768%2C432&ssl=1 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p>Le mode spot mesure la lumi\u00e8re sur une toute petite partie de l\u2019image. Elle s\u2019affiche sur la plupart des appareils par une zone mat\u00e9rialis\u00e9e par un cercle qu\u2019il est possible de d\u00e9placer sur le sujet \u00e0 exposer correctement ou bien qui peut \u00eatre associ\u00e9e au collimateur de la mise au point.<\/p>\n\n\n\n<p>Cette m\u00e9thode s\u2019av\u00e8re extr\u00eamement pratique dans certains cas,&nbsp; par exemple lorsqu\u2019il y a une zone avec un tr\u00e8s fort contraste ou alors pour photographier le portrait d\u2019une personne \u00e0 contre-jour et cr\u00e9er derri\u00e8re sa silhouette un beau halo lumineux. L\u2019appareil va mesurer la lumi\u00e8re sur la zone \u00e0 exposer correctement, (dans le dernier exemple : le&nbsp; visage), sans tenir compte du reste de l\u2019image.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/mode-exposition-contre-jour.jpg?resize=800%2C450&#038;ssl=1\" alt=\"exposer a contre jour \" class=\"wp-image-8299\" srcset=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/mode-exposition-contre-jour.jpg?w=945&ssl=1 945w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/mode-exposition-contre-jour.jpg?resize=300%2C169&ssl=1 300w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/mode-exposition-contre-jour.jpg?resize=768%2C432&ssl=1 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p>Le mode de mesure spot reste toutefois tr\u00e8s d\u00e9licat \u00e0 utiliser dans de nombreuses situations, notamment lorsque le sujet est en mouvement puisque la mesure risque de s\u2019effectuer au mauvais endroit. Prenons l\u2019exemple d\u2019une personne avec un tee-shirt noir, si l\u2019appareil effectue par erreur la mesure sur le v\u00eatement ou l\u2019arri\u00e8re-plan sombre et non sur le visage, il va exposer pour le noir pensant que la sc\u00e8ne est sous-expos\u00e9e : la photo sera alors surexpos\u00e9e.<\/p>\n\n\n\n<p>Pour ceux qui d\u00e9couvrent la photographie et souhaitent ma\u00eetriser leur mise au point pour des photos nettes et comprendre <a href=\"https:\/\/pierretlambert.com\/fr\/mise-au-point-back-button-focus\/\">la technique du \u00ab\u00a0BBF\u00a0\u00bb lisez cet article<\/a>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">&#8211; Les autres modes propos\u00e9s par Sony<\/h3>\n\n\n\n<p>Sony propose deux autres modes de mesure, le premier mesurant la luminosit\u00e9 moyenne de l&rsquo;\u00e9cran tout entier et le second permettant de prendre la mesure pour exposer correctement les tons clairs. Ce dernier mode&nbsp; se r\u00e9v\u00e8le tr\u00e8s pratique la nuit, notamment en photo de rue dans des conditions o\u00f9 il y a \u00e0 la fois des zones \u00e9clair\u00e9es et des zones tr\u00e8s sombres, ou pour r\u00e9aliser des silhouettes sombres sur un fond tr\u00e8s lumineux. L\u2019appareil va exposer directement pour les hautes lumi\u00e8res. Cela \u00e9vite de devoir r\u00e9duire la luminosit\u00e9 lors du post-traitement.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/mode-mesure-hautes-lumieres-sony.jpg?resize=800%2C450&#038;ssl=1\" alt=\"mode de mesure hautes lumieres sony\" class=\"wp-image-8301\" srcset=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/mode-mesure-hautes-lumieres-sony.jpg?w=944&ssl=1 944w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/mode-mesure-hautes-lumieres-sony.jpg?resize=300%2C169&ssl=1 300w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/mode-mesure-hautes-lumieres-sony.jpg?resize=768%2C432&ssl=1 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p>Astuce :&nbsp; Sur Sony, dans le menu des modes de mesure, il est possible d\u2019appuyer sur la poubelle afin d\u2019obtenir des informations sur l\u2019utilisation de chacun des modes.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/mode-mesure-sony-multi.jpg?resize=800%2C450&#038;ssl=1\" alt=\"mode de mesure multi sur appareil photo\" class=\"wp-image-8303\" srcset=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/mode-mesure-sony-multi.jpg?w=944&ssl=1 944w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/mode-mesure-sony-multi.jpg?resize=300%2C169&ssl=1 300w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/mode-mesure-sony-multi.jpg?resize=768%2C432&ssl=1 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Comment choisir le bon mode pour vos photos ?<\/h2>\n\n\n\n<p>Au quotidien, je privil\u00e9gie le mode Multi (\u00c9valuatif), car il provoque rarement de mauvaise surprise, je connais sa mani\u00e8re de fonctionner et le rendu qu\u2019il va me proposer. En utilisant ce mode, je peux facilement ajuster le r\u00e9glage de l\u2019exposition lors de la prise de vue avec la molette de compensation d\u2019exposition, ou bien post-traitement.&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/mode-mesure-compensation-exposition.jpg?resize=800%2C450&#038;ssl=1\" alt=\"lire la compensation d'exposition sur son \u00e9cran\" class=\"wp-image-8305\" srcset=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/mode-mesure-compensation-exposition.jpg?w=945&ssl=1 945w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/mode-mesure-compensation-exposition.jpg?resize=300%2C169&ssl=1 300w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/mode-mesure-compensation-exposition.jpg?resize=768%2C432&ssl=1 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">&#8211; Comment r\u00e9gler la compensation d&rsquo;exposition<\/h3>\n\n\n\n<p>Lorsque tu shootes en mode semi-automatique (Priorit\u00e9 Vitesse \u2013 \u00ab S \u00bb ou Priorit\u00e9 Ouverture \u00ab A \u00bb, tu peux utiliser la compensation d\u2019exposition avec la petite molette qui commande cela. Elle affiche une graduation allant de &#8211; 3 \u00e0 + 3 qui va \u00eatre un moyen de communiquer \u00e0 l\u2019appareil que tu souhaites qu\u2019il surexpose ton image ou au contraire qu\u2019il baisse l\u2019exposition pour sous-exposer la photo.<\/p>\n\n\n\n<p>Il s\u2019agit de l\u2019une de mes astuces pour shooter tr\u00e8s rapidement. Dans le cas d\u2019un changement de luminosit\u00e9 au cours du shooting, je vais simplement tourner la molette de compensation vers le \u00ab &#8211; \u00bb si la sc\u00e8ne est devenue plus lumineuse, ou vers le \u00ab + \u00bb si je veux compenser un manque de lumi\u00e8re et constater le r\u00e9sultat instantan\u00e9ment sur l\u2019\u00e9cran de mon boitier gr\u00e2ce au \u00ab LIVE VIEW \u00bb activ\u00e9.<\/p>\n\n\n\n<p>Une autre&nbsp; de mes astuces que je partage avec toi : si tu veux shooter en mode manuel, tu peux utiliser la graduation qui t\u2019indique la bonne exposition pour d\u00e9terminer les bons r\u00e9glages.&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/mode-mesure-compensation-exposition-portrait.jpg?resize=800%2C450&#038;ssl=1\" alt=\"compensation d'exposition pour photo de portrait\" class=\"wp-image-8307\" srcset=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/mode-mesure-compensation-exposition-portrait.jpg?w=945&ssl=1 945w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/mode-mesure-compensation-exposition-portrait.jpg?resize=300%2C169&ssl=1 300w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/mode-mesure-compensation-exposition-portrait.jpg?resize=768%2C432&ssl=1 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p>&nbsp;Si le curseur n\u2019est pas \u00e0 0 cela signifie que ta sc\u00e8ne n\u2019est pas correctement expos\u00e9e.&nbsp; Si il indique -2 par exemple, c\u2019est que ta photo est sous-expos\u00e9e de 2 stops. Pour l\u2019exposer correctement, tu vas donc pouvoir commencer par augmenter les ISO de 2 stops pour que le curseur soit sur le z\u00e9ro. Ou bien, si les ISO sont d\u00e9j\u00e0 mont\u00e9s trop haut tu vas changer ta vitesse d&rsquo;obturation et la baisser jusqu&rsquo;\u00e0 arriver au z\u00e9ro sur la graduation.&nbsp; <\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/20230313-A1_07073-pierretlambert.jpg?resize=800%2C450&#038;ssl=1\" alt=\"\" class=\"wp-image-8350\" srcset=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/20230313-A1_07073-pierretlambert.jpg?resize=1024%2C576&ssl=1 1024w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/20230313-A1_07073-pierretlambert.jpg?resize=300%2C169&ssl=1 300w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/20230313-A1_07073-pierretlambert.jpg?resize=768%2C432&ssl=1 768w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/20230313-A1_07073-pierretlambert.jpg?resize=1536%2C864&ssl=1 1536w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/20230313-A1_07073-pierretlambert.jpg?w=1600&ssl=1 1600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p class=\"has-small-font-size\"><em>Photo \u00e9dit\u00e9e avec mes <a href=\"https:\/\/pierretlambert.com\/presetsfr\" target=\"_blank\" rel=\"noreferrer noopener\">presets Lightroom disponibles ici<\/a>.<\/em><\/p>\n\n\n\n<p>C\u2019est \u00e0 toi de trouver un \u00e9quilibre pour avoir un sujet bien fig\u00e9 avec ta vitesse d&rsquo;obturation. (Je t\u2019invite \u00e0 lire mon article sur les bases de la photo si l\u2019interaction entre les diff\u00e9rents r\u00e9glages du triangle d\u2019exposition est un peu floue pour toi).&nbsp;<\/p>\n\n\n\n<p>L\u2019appareil est seulement l\u00e0 pour te donner une indication, mais tu restes le principal artisan ou artiste de tes photos !<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Ma derni\u00e8re astuce pour une exposition correcte.<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/mode-mesure-eviter-mauvais-reglage.jpg?resize=800%2C450&#038;ssl=1\" alt=\"mauvaise exposition de l\u2019image en pr\u00e9sence d\u2019une personne dans le cadre\" class=\"wp-image-8309\" srcset=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/mode-mesure-eviter-mauvais-reglage.jpg?w=944&ssl=1 944w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/mode-mesure-eviter-mauvais-reglage.jpg?resize=300%2C169&ssl=1 300w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/mode-mesure-eviter-mauvais-reglage.jpg?resize=768%2C432&ssl=1 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p>Tu t\u2019es peut-\u00eatre d\u00e9j\u00e0 demand\u00e9 pourquoi l\u2019exposition de ta photo se modifie lorsqu\u2019une personne entre dans ton cadre?&nbsp;<\/p>\n\n\n\n<p>C\u2019est \u00e0 cause d\u2019un r\u00e9glage qui est activ\u00e9 pour donner la priorit\u00e9 au sujet d\u00e9tect\u00e9 pour la mesure de la lumi\u00e8re.&nbsp;&nbsp;<\/p>\n\n\n\n<p>Quelque soit l\u2019exposition de ta sc\u00e8ne, d\u00e8s lors qu\u2019une personne entre dans le champ de ton appareil, il va modifier l\u2019exposition pour que ce soit le visage qui soit correctement expos\u00e9, au d\u00e9triment du reste de l\u2019image.&nbsp;<\/p>\n\n\n\n<p>Si ce r\u00e9glage peut s\u2019av\u00e9rer pratique dans certaines situations, il va \u00eatre totalement contreproductif dans la plupart des cas. Je te conseille de le d\u00e9sactiver parce que comme je le dis souvent, il faut rester intentionnel dans les param\u00e8tres que l&rsquo;on choisit sur son appareil photo et \u00e9viter de laisser \u00e0 l&rsquo;appareil les choix artistiques.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/mode-mesure-eviter-mauvais-reglage-2.jpg?resize=800%2C450&#038;ssl=1\" alt=\"exposition correcte sans l'exposition pour la detection de sujet\" class=\"wp-image-8311\" srcset=\"https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/mode-mesure-eviter-mauvais-reglage-2.jpg?w=944&ssl=1 944w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/mode-mesure-eviter-mauvais-reglage-2.jpg?resize=300%2C169&ssl=1 300w, https:\/\/i0.wp.com\/pierretlambert.com\/wp-content\/uploads\/2024\/11\/mode-mesure-eviter-mauvais-reglage-2.jpg?resize=768%2C432&ssl=1 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p>J\u2019esp\u00e8re que ces conseils t\u2019auront permis de mieux comprendre les modes de mesure d\u2019exposition, et si tu le souhaites, tu peux t\u00e9l\u00e9charger mon guide de r\u00e9glages gratuit (en bas de la page) pour b\u00e9n\u00e9ficier d\u2019autres conseils qui t\u2019aideront \u00e0 am\u00e9liorer encore davantage le rendu de tes photos.<\/p>\n\n\n\n<p>Maintenant je t&rsquo;invite \u00e0 <a href=\"https:\/\/pierretlambert.com\/fr\/mise-au-point-back-button-focus\/\">tout apprendre sur la mise au point automatique pour r\u00e9ussir \u00e0 prendre des photos nettes<\/a>.<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Photographier c\u2019est l\u2019art de capturer la lumi\u00e8re. Le mot \u00ab photographie \u00bb lui-m\u00eame signifie \u00e9crire avec la lumi\u00e8re (du grec ancien \u00ab photo \u00bb la lumi\u00e8re, et \u00ab grapho \u00bb \u00e9crire). Prendre une photo c\u2019est donc cr\u00e9er une \u0153uvre avec de la lumi\u00e8re. En fonction de la quantit\u00e9 de lumi\u00e8re re\u00e7ue, c\u2019est-\u00e0-dire de l\u2019exposition, le [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":8316,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":true,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[172],"tags":[175],"class_list":["post-8282","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-photographie","tag-photographie"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Modes de mesure d\u2019exposition en photographie : Spot, \u00c9valuatif, Matrice \u2013 Guide et Astuces<\/title>\n<meta name=\"description\" content=\"D\u00e9couvrez les diff\u00e9rents modes de mesure d\u2019exposition en photographie : spot, \u00e9valuatif, matrice. 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