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</header> </div> <div class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"><!-- CentralNotice --></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="Site"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> <div class="vector-sticky-pinned-container"> <nav id="mw-panel-toc" aria-label="Sommaire" data-event-name="ui.sidebar-toc" class="mw-table-of-contents-container vector-toc-landmark"> <div id="vector-toc-pinned-container" class="vector-pinned-container"> <div id="vector-toc" class="vector-toc vector-pinnable-element"> <div class="vector-pinnable-header vector-toc-pinnable-header vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">Sommaire</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">déplacer vers la barre latérale</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">masquer</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">Début</div> </a> </li> <li id="toc-Description_physique" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Description_physique"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Description physique</span> </div> </a> <ul id="toc-Description_physique-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Amélioration_du_piqué" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Amélioration_du_piqué"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Amélioration du piqué</span> </div> </a> <button aria-controls="toc-Amélioration_du_piqué-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Afficher / masquer la sous-section Amélioration du piqué</span> </button> <ul id="toc-Amélioration_du_piqué-sublist" class="vector-toc-list"> <li id="toc-Optique" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Optique"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1</span> <span>Optique</span> </div> </a> <ul id="toc-Optique-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Numérique" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Numérique"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.2</span> <span>Numérique</span> </div> </a> <ul id="toc-Numérique-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Objectifs_photographiques_et_piqué" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Objectifs_photographiques_et_piqué"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Objectifs photographiques et piqué</span> </div> </a> <ul id="toc-Objectifs_photographiques_et_piqué-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Références" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Références"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Références</span> </div> </a> <ul id="toc-Références-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Voir_aussi" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Voir_aussi"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Voir aussi</span> </div> </a> <ul id="toc-Voir_aussi-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Sommaire" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Basculer la table des matières" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Basculer la table des matières</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading">« Piqué » : différence entre les versions</h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Aller à un article dans une autre langue. Disponible en 7 langues." > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-7" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">7 langues</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Acut%C3%A0ncia" title="Acutància – catalan" lang="ca" hreflang="ca" data-title="Acutància" data-language-autonym="Català" data-language-local-name="catalan" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Ostrost" title="Ostrost – tchèque" lang="cs" hreflang="cs" data-title="Ostrost" data-language-autonym="Čeština" data-language-local-name="tchèque" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Akutanz" title="Akutanz – allemand" lang="de" hreflang="de" data-title="Akutanz" data-language-autonym="Deutsch" data-language-local-name="allemand" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Acutance" title="Acutance – anglais" lang="en" hreflang="en" data-title="Acutance" data-language-autonym="English" data-language-local-name="anglais" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Acutancia" title="Acutancia – espagnol" lang="es" hreflang="es" data-title="Acutancia" data-language-autonym="Español" data-language-local-name="espagnol" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Akutancja" title="Akutancja – polonais" lang="pl" hreflang="pl" data-title="Akutancja" data-language-autonym="Polski" data-language-local-name="polonais" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E9%94%90%E5%BA%A6" title="锐度 – chinois" lang="zh" hreflang="zh" data-title="锐度" data-language-autonym="中文" data-language-local-name="chinois" class="interlanguage-link-target"><span>中文</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q424183#sitelinks-wikipedia" title="Modifier les liens interlangues" class="wbc-editpage">Modifier les liens</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Espaces de noms"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Piqu%C3%A9" title="Voir le contenu de la page [c]" accesskey="c"><span>Article</span></a></li><li id="ca-talk" class="vector-tab-noicon mw-list-item"><a href="/wiki/Discussion:Piqu%C3%A9" rel="discussion" title="Discussion au sujet de cette page de contenu [t]" accesskey="t"><span>Discussion</span></a></li> </ul> </div> </div> <div id="vector-variants-dropdown" class="vector-dropdown emptyPortlet" > <input type="checkbox" id="vector-variants-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-variants-dropdown" class="vector-dropdown-checkbox " aria-label="Modifier la variante de langue" > <label id="vector-variants-dropdown-label" for="vector-variants-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">français</span> </label> <div class="vector-dropdown-content"> <div id="p-variants" class="vector-menu mw-portlet mw-portlet-variants emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> </div> </div> </nav> </div> <div id="right-navigation" class="vector-collapsible"> <nav aria-label="Affichages"> <div id="p-views" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-views" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-view" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Piqu%C3%A9"><span>Lire</span></a></li><li id="ca-ve-edit" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Piqu%C3%A9&oldid=104559135&veaction=edit" title="Modifier cette page [v]" accesskey="v"><span>Modifier</span></a></li><li id="ca-edit" class="collapsible vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Piqu%C3%A9&action=edit&oldid=104559135" title="Modifier le wikicode de cette page [e]" accesskey="e"><span>Modifier le code</span></a></li><li id="ca-history" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Piqu%C3%A9&action=history" title="Historique des versions de cette page [h]" accesskey="h"><span>Voir l’historique</span></a></li> </ul> </div> </div> </nav> <nav class="vector-page-tools-landmark" aria-label="Outils de la page"> <div id="vector-page-tools-dropdown" class="vector-dropdown vector-page-tools-dropdown" > <input type="checkbox" id="vector-page-tools-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-tools-dropdown" class="vector-dropdown-checkbox " aria-label="Outils" > <label id="vector-page-tools-dropdown-label" for="vector-page-tools-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">Outils</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-tools-unpinned-container" class="vector-unpinned-container"> <div id="vector-page-tools" class="vector-page-tools vector-pinnable-element"> <div class="vector-pinnable-header vector-page-tools-pinnable-header vector-pinnable-header-unpinned" data-feature-name="page-tools-pinned" data-pinnable-element-id="vector-page-tools" data-pinned-container-id="vector-page-tools-pinned-container" data-unpinned-container-id="vector-page-tools-unpinned-container" > <div class="vector-pinnable-header-label">Outils</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">déplacer vers la barre latérale</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">masquer</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="Plus d’options" > <div class="vector-menu-heading"> Actions </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-more-view" class="selected vector-more-collapsible-item mw-list-item"><a href="/wiki/Piqu%C3%A9"><span>Lire</span></a></li><li id="ca-more-ve-edit" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Piqu%C3%A9&oldid=104559135&veaction=edit" title="Modifier cette page [v]" accesskey="v"><span>Modifier</span></a></li><li id="ca-more-edit" class="collapsible vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Piqu%C3%A9&action=edit&oldid=104559135" title="Modifier le wikicode de cette page [e]" accesskey="e"><span>Modifier le code</span></a></li><li id="ca-more-history" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Piqu%C3%A9&action=history"><span>Voir l’historique</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> Général </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/Sp%C3%A9cial:Pages_li%C3%A9es/Piqu%C3%A9" title="Liste des pages liées qui pointent sur celle-ci [j]" accesskey="j"><span>Pages liées</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/Sp%C3%A9cial:Suivi_des_liens/Piqu%C3%A9" rel="nofollow" title="Liste des modifications récentes des pages appelées par celle-ci [k]" accesskey="k"><span>Suivi des pages liées</span></a></li><li id="t-upload" class="mw-list-item"><a href="/wiki/Aide:Importer_un_fichier" title="Téléverser des fichiers [u]" accesskey="u"><span>Téléverser un fichier</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/Sp%C3%A9cial:Pages_sp%C3%A9ciales" title="Liste de toutes les pages spéciales [q]" accesskey="q"><span>Pages spéciales</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=Piqu%C3%A9&oldid=104559135" title="Adresse permanente de cette version de cette page"><span>Lien permanent</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=Piqu%C3%A9&action=info" title="Davantage d’informations sur cette page"><span>Informations sur la page</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=Sp%C3%A9cial:Citer&page=Piqu%C3%A9&id=104559135&wpFormIdentifier=titleform" title="Informations sur la manière de citer cette page"><span>Citer cette page</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=Sp%C3%A9cial:UrlShortener&url=https%3A%2F%2Ffr.wikipedia.org%2Fw%2Findex.php%3Ftitle%3DPiqu%25C3%25A9%26diff%3Dprev%26oldid%3D104559135"><span>Obtenir l'URL raccourcie</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=Sp%C3%A9cial:QrCode&url=https%3A%2F%2Ffr.wikipedia.org%2Fw%2Findex.php%3Ftitle%3DPiqu%25C3%25A9%26diff%3Dprev%26oldid%3D104559135"><span>Télécharger le code QR</span></a></li> </ul> </div> </div> <div id="p-coll-print_export" class="vector-menu mw-portlet mw-portlet-coll-print_export" > <div class="vector-menu-heading"> Imprimer / exporter </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="coll-create_a_book" class="mw-list-item"><a href="/w/index.php?title=Sp%C3%A9cial:Livre&bookcmd=book_creator&referer=Piqu%C3%A9"><span>Créer un livre</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=Piqu%C3%A9&printable=yes" title="Version imprimable de cette page [p]" accesskey="p"><span>Version imprimable</span></a></li> </ul> </div> </div> <div id="p-wikibase-otherprojects" class="vector-menu mw-portlet mw-portlet-wikibase-otherprojects" > <div class="vector-menu-heading"> Dans d’autres projets </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-wikibase" class="wb-otherproject-link wb-otherproject-wikibase-dataitem mw-list-item"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q424183" title="Lien vers l’élément dans le dépôt de données connecté [g]" accesskey="g"><span>Élément Wikidata</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> </div> </div> </div> <div class="vector-column-end"> <div class="vector-sticky-pinned-container"> <nav class="vector-page-tools-landmark" aria-label="Outils de la page"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Apparence"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Apparence</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">déplacer vers la barre latérale</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">masquer</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> <div id="mw-indicator-mw-helplink" class="mw-indicator"><a href="https://www.mediawiki.org/wiki/Special:MyLanguage/Help:Diff" target="_blank" class="mw-helplink"><span class="mw-helplink-icon"></span>Aide</a></div> </div> <div id="siteSub" class="noprint">Un article de Wikipédia, l'encyclopédie libre.</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-revslider-container"><span style='width: 100%; text-align: center;' id='ooui-php-1' class='mw-revslider-toggle-button oo-ui-widget oo-ui-widget-enabled oo-ui-buttonElement oo-ui-buttonElement-frameless oo-ui-indicatorElement oo-ui-labelElement oo-ui-buttonWidget' data-ooui='{"_":"OO.ui.ButtonWidget","rel":["nofollow"],"framed":false,"indicator":"down","label":"Navigation interactive dans l\u2019historique","title":"Ouvrir la glissi\u00e8re des versions","classes":["mw-revslider-toggle-button"]}'><a role='button' title='Ouvrir la glissière des versions' tabindex='0' rel='nofollow' class='oo-ui-buttonElement-button'><span class='oo-ui-iconElement-icon oo-ui-iconElement-noIcon'></span><span class='oo-ui-labelElement-label'>Navigation interactive dans l’historique</span><span class='oo-ui-indicatorElement-indicator oo-ui-indicator-down'></span></a></span><div class="mw-revslider-slider-wrapper" style="display: none;"><div class="mw-revslider-placeholder"><div class="mw-revslider-spinner"><div class="mw-revslider-bounce"></div></div></div></div></div><div class="mw-diff-revision-history-links"><a href="/w/index.php?title=Piqu%C3%A9&diff=prev&oldid=104556599" class="mw-diff-revision-history-link-previous" title="Piqué">← Modification précédente</a><a href="/w/index.php?title=Piqu%C3%A9&diff=next&oldid=104559135" class="mw-diff-revision-history-link-next" title="Piqué">Modification suivante →</a></div><div class="mw-diff-table-prefix" dir="ltr" lang="fr"><div class="mw-diff-inline-legend oo-ui-element-hidden"><span class="mw-diff-inline-legend-del">Contenu supprimé</span> <span class="mw-diff-inline-legend-ins">Contenu ajouté</span></div><div class="ve-init-mw-diffPage-diffMode"><span class='oo-ui-widget oo-ui-widget-enabled oo-ui-buttonGroupWidget'><span aria-disabled='true' class='oo-ui-widget oo-ui-widget-disabled oo-ui-buttonElement oo-ui-buttonElement-framed oo-ui-iconElement oo-ui-labelElement oo-ui-buttonWidget'><a role='button' tabindex='-1' aria-disabled='true' rel='nofollow' class='oo-ui-buttonElement-button'><span class='oo-ui-iconElement-icon oo-ui-icon-eye oo-ui-image-invert'></span><span class='oo-ui-labelElement-label'>Visuel</span><span class='oo-ui-indicatorElement-indicator oo-ui-indicatorElement-noIndicator oo-ui-image-invert'></span></a></span><span class='oo-ui-widget oo-ui-widget-enabled oo-ui-buttonElement oo-ui-buttonElement-framed oo-ui-iconElement oo-ui-labelElement oo-ui-buttonWidget oo-ui-buttonElement-active'><a role='button' tabindex='0' rel='nofollow' class='oo-ui-buttonElement-button'><span class='oo-ui-iconElement-icon oo-ui-icon-wikiText oo-ui-image-invert'></span><span class='oo-ui-labelElement-label'>Wikicode</span><span class='oo-ui-indicatorElement-indicator oo-ui-indicatorElement-noIndicator oo-ui-image-invert'></span></a></span></span></div><div class="mw-diffPage-inlineToggle-container"><div id='mw-diffPage-inline-toggle-switch-layout' class='oo-ui-layout oo-ui-labelElement oo-ui-fieldLayout oo-ui-fieldLayout-align-left' data-ooui='{"_":"OO.ui.FieldLayout","fieldWidget":{"tag":"mw-diffPage-inline-toggle-switch"},"$overlay":true,"label":"Int\u00e9gr\u00e9s","title":"Permet de basculer entre le format en ligne et le format sur deux colonnes"}'><div class='oo-ui-fieldLayout-body'><span class='oo-ui-fieldLayout-header'><label title='Permet de basculer entre le format en ligne et le format sur deux colonnes' id='ooui-php-2' class='oo-ui-labelElement-label'>Intégrés</label></span><div class='oo-ui-fieldLayout-field'><div id='mw-diffPage-inline-toggle-switch' title='Permet de basculer entre le format en ligne et le format sur deux colonnes' aria-checked='false' tabindex='0' role='switch' aria-labelledby='ooui-php-2' class='oo-ui-widget oo-ui-widget-enabled oo-ui-toggleWidget oo-ui-toggleWidget-off oo-ui-toggleSwitchWidget' data-ooui='{"_":"OO.ui.ToggleSwitchWidget","href":"\/w\/index.php?title=Piqu%C3%A9&diff=prev&oldid=104559135&diff-type=inline","value":false,"title":"Permet de basculer entre le format en ligne et le format sur deux colonnes"}'><span class='oo-ui-toggleSwitchWidget-glow'></span><a href='/w/index.php?title=Piqu%C3%A9&diff=prev&oldid=104559135&diff-type=inline'><span class='oo-ui-toggleSwitchWidget-grip'></span></a></div></div></div></div></div></div><table class="diff diff-type-table diff-contentalign-left diff-editfont-monospace" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="fr"> <td colspan="2" class="diff-otitle diff-side-deleted"><div id="mw-diff-otitle1"><strong><a href="/w/index.php?title=Piqu%C3%A9&oldid=104556599" title="Piqué">Version du 11 juin 2014 à 00:29</a> <span class="mw-diff-edit"><a href="/w/index.php?title=Piqu%C3%A9&action=edit&oldid=104556599" title="Piqué">modifier</a></span><span class="mw-diff-timestamp" data-timestamp="2014-06-10T23:29:20Z"></span></strong></div><div id="mw-diff-otitle2"><a href="/wiki/Utilisateur:Gorm%C3%A9" class="mw-userlink" title="Utilisateur:Gormé" data-mw-revid="104556599"><bdi>Gormé</bdi></a> <span class="mw-usertoollinks">(<a href="/wiki/Discussion_utilisateur:Gorm%C3%A9" class="mw-usertoollinks-talk" title="Discussion utilisateur:Gormé">discuter</a> | <a href="/wiki/Sp%C3%A9cial:Contributions/Gorm%C3%A9" class="mw-usertoollinks-contribs" title="Spécial:Contributions/Gormé">contributions</a>)</span><div class="mw-diff-usermetadata"><div class="mw-diff-userroles"></div><div class="mw-diff-usereditcount"><span>1 321</span> modifications</div></div></div><div id="mw-diff-otitle3"> <span class="comment comment--without-parentheses">ajout, ref, illustration</span></div><div id="mw-diff-otitle5"></div><div id="mw-diff-otitle4"><a href="/w/index.php?title=Piqu%C3%A9&diff=prev&oldid=104556599" title="Piqué" id="differences-prevlink">← Modification précédente</a></div></td> <td colspan="2" class="diff-ntitle diff-side-added"><div id="mw-diff-ntitle1"><strong><a href="/w/index.php?title=Piqu%C3%A9&oldid=104559135" title="Piqué">Version du 11 juin 2014 à 07:16</a> <span class="mw-diff-edit"><a href="/w/index.php?title=Piqu%C3%A9&action=edit&oldid=104559135" title="Piqué">modifier</a></span><span class="mw-diff-timestamp" data-timestamp="2014-06-11T06:16:28Z"></span> <span class="mw-diff-undo"><a href="/w/index.php?title=Piqu%C3%A9&action=edit&undoafter=104556599&undo=104559135" title="« Annuler » rétablit la modification précédente et ouvre la fenêtre de modification en mode prévisualisation. Il est possible d’ajouter une raison dans le résumé.">annuler</a></span></strong></div><div id="mw-diff-ntitle2"><a href="/wiki/Utilisateur:Gorm%C3%A9" class="mw-userlink" title="Utilisateur:Gormé" data-mw-revid="104559135"><bdi>Gormé</bdi></a> <span class="mw-usertoollinks">(<a href="/wiki/Discussion_utilisateur:Gorm%C3%A9" class="mw-usertoollinks-talk" title="Discussion utilisateur:Gormé">discuter</a> | <a href="/wiki/Sp%C3%A9cial:Contributions/Gorm%C3%A9" class="mw-usertoollinks-contribs" title="Spécial:Contributions/Gormé">contributions</a>)</span><div class="mw-diff-usermetadata"><div class="mw-diff-userroles"></div><div class="mw-diff-usereditcount"><span>1 321</span> modifications</div></div></div><div id="mw-diff-ntitle3"><abbr class="minoredit" title="Cette modification est mineure.">m</abbr> <span class="comment comment--without-parentheses"><span class="autocomment"><a href="#Description_physique">→<bdi dir="ltr">Description physique</bdi></a> : </span> modif lien</span></div><div id="mw-diff-ntitle5"></div><div id="mw-diff-ntitle4"><a href="/w/index.php?title=Piqu%C3%A9&diff=next&oldid=104559135" title="Piqué" id="differences-nextlink">Modification suivante →</a></div></td> </tr><tr> <td colspan="2" class="diff-lineno">Ligne 13 :</td> <td colspan="2" class="diff-lineno">Ligne 13 :</td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>La notion de piqué est associé à la transmission des hautes fréquences spatiales par le système optique. Ce sont les hautes fréquences spatiales qui donnent à l'image sa précision et sa netteté. </div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>La notion de piqué est associé à la transmission des hautes fréquences spatiales par le système optique. Ce sont les hautes fréquences spatiales qui donnent à l'image sa précision et sa netteté. </div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>Pour mesurer le piqué d'un point de vue optique, on utilise souvent le critère de la [[<del class="diffchange diffchange-inline">aberration_optique</del>|MTF]] qui caractérise la plus haute fréquence spatiale transmise. </div></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>Pour mesurer le piqué d'un point de vue optique, on utilise souvent le critère de la [[<ins class="diffchange diffchange-inline">Fonction_de_transfert_de_modulation</ins>|MTF]] qui caractérise la plus haute fréquence spatiale transmise. </div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>[[File:Photographie piquée.JPG|thumb|center|600px|Exemple d'image fortement piquée. Elle n'est pas retraitée numériquement. Cliquez pour la voir en taille 100%.]]</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>[[File:Photographie piquée.JPG|thumb|center|600px|Exemple d'image fortement piquée. Elle n'est pas retraitée numériquement. Cliquez pour la voir en taille 100%.]]</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>Le piqué d'une image s'évalue physiquement à 100% de sa taille. Pour autant le piqué peut être ressenti sur une image redimensionnée.<del class="diffchange diffchange-inline"> </del></div></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>Le piqué d'une image s'évalue physiquement à 100% de sa taille. Pour autant le piqué peut être ressenti sur une image redimensionnée.</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>== Amélioration du piqué==</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>== Amélioration du piqué==</div></td> </tr> </table><hr class='diff-hr' id='mw-oldid' /> <h2 class='diff-currentversion-title'>Version du 11 juin 2014 à 07:16</h2> <div class="mw-content-ltr mw-parser-output" lang="fr" dir="ltr"><div class="bandeau-container metadata bandeau-article bandeau-niveau-ebauche"><div class="bandeau-cell bandeau-icone" style="display:table-cell;padding-right:0.5em"><span class="noviewer" typeof="mw:File"><a href="/wiki/Fichier:Circle-icons-camera.svg" class="mw-file-description"><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c3/Circle-icons-camera.svg/35px-Circle-icons-camera.svg.png" decoding="async" width="35" height="35" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c3/Circle-icons-camera.svg/53px-Circle-icons-camera.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c3/Circle-icons-camera.svg/70px-Circle-icons-camera.svg.png 2x" data-file-width="512" data-file-height="512" /></a></span></div><div class="bandeau-cell" style="display:table-cell;padding-right:0.5em"> <p><strong class="bandeau-titre">Cet article est une <a href="/wiki/Aide:%C3%89bauche" title="Aide:Ébauche">ébauche</a> concernant la <a href="/wiki/Photographie" title="Photographie">photographie</a>.</strong> </p><p>Vous pouvez partager vos connaissances en l’améliorant (<b><a href="/wiki/Aide:Comment_modifier_une_page" title="Aide:Comment modifier une page">comment ?</a></b>) selon les recommandations des <a href="/wiki/Projet:Accueil" title="Projet:Accueil">projets correspondants</a>. </p> </div></div> <div class="bandeau-container metadata homonymie hatnote"><div class="bandeau-cell bandeau-icone" style="display:table-cell;padding-right:0.5em"><span class="noviewer" typeof="mw:File"><a href="/wiki/Aide:Homonymie" title="Aide:Homonymie"><img alt="Page d’aide sur l’homonymie" src="//upload.wikimedia.org/wikipedia/commons/thumb/a/a9/Logo_disambig.svg/20px-Logo_disambig.svg.png" decoding="async" width="20" height="15" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/a9/Logo_disambig.svg/30px-Logo_disambig.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/a9/Logo_disambig.svg/40px-Logo_disambig.svg.png 2x" data-file-width="512" data-file-height="375" /></a></span></div><div class="bandeau-cell" style="display:table-cell;padding-right:0.5em"> <p>Pour les articles homonymes, voir <a href="/wiki/Piqu%C3%A9_(homonymie)" class="mw-disambig" title="Piqué (homonymie)">Piqué (homonymie)</a>. </p> </div></div> <div class="bandeau-container metadata homonymie hatnote"><div class="bandeau-cell bandeau-icone" style="display:table-cell;padding-right:0.5em"><span class="noviewer" typeof="mw:File"><a href="/wiki/Aide:Homonymie" title="Aide:Homonymie"><img alt="Page d’aide sur l’homonymie" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/44/Logo_disambig-homophone.svg/20px-Logo_disambig-homophone.svg.png" decoding="async" width="20" height="15" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/44/Logo_disambig-homophone.svg/30px-Logo_disambig-homophone.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/44/Logo_disambig-homophone.svg/40px-Logo_disambig-homophone.svg.png 2x" data-file-width="512" data-file-height="375" /></a></span></div><div class="bandeau-cell" style="display:table-cell;padding-right:0.5em"> <p>Pour l’article ayant un titre homophone, voir <a href="/wiki/Piquer" title="Piquer">Piquer</a>. </p> </div></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/Fichier:Sharpness_chart02_f22_detail02.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/8/81/Sharpness_chart02_f22_detail02.jpg/220px-Sharpness_chart02_f22_detail02.jpg" decoding="async" width="220" height="77" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/81/Sharpness_chart02_f22_detail02.jpg/330px-Sharpness_chart02_f22_detail02.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/81/Sharpness_chart02_f22_detail02.jpg/440px-Sharpness_chart02_f22_detail02.jpg 2x" data-file-width="581" data-file-height="204" /></a><figcaption>Mire de test de piqué</figcaption></figure> <p>La notion de <b>piqué</b> est utilisée en <a href="/wiki/Photographie" title="Photographie">photographie</a> et au <a href="/wiki/Cin%C3%A9ma" title="Cinéma">cinéma</a> pour désigner la qualité de détail d'une image. Plus le piqué d'une image sera important, plus l'impression de <a href="/w/index.php?title=Flou,_nettet%C3%A9_et_contraste&action=edit&redlink=1" class="new" title="Flou, netteté et contraste (page inexistante)">netteté</a> sera grande <sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite_crochet">[</span>1<span class="cite_crochet">]</span></a></sup>. </p><p>On associe généralement le piqué à la <a href="/wiki/Pouvoir_de_r%C3%A9solution_(optique)" class="mw-redirect" title="Pouvoir de résolution (optique)">résolution</a> de l'image, alors que cette notion concerne plus largement la capacité d'un équipement de prise de vue à faire ressortir les détails. </p><p>Sur une <a href="/wiki/Pellicule_photographique" title="Pellicule photographique">pellicule photographique</a>, le piqué est exprimé en traits/<a href="/wiki/Millim%C3%A8tre" title="Millimètre">mm</a>, c’est-à-dire le nombre de traits noirs qu'il est possible de distinguer avec un <a href="/wiki/Contraste" title="Contraste">contraste</a> suffisant. En <a href="/wiki/Vid%C3%A9o" title="Vidéo">vidéo</a>, la même notion est exprimée par le nombre de lignes TV. Le piqué correspond généralement aux performances d'un ensemble pellicule/caméra/objectif. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Description_physique">Description physique</h2></div> <p>La notion de piqué est associé à la transmission des hautes fréquences spatiales par le système optique. Ce sont les hautes fréquences spatiales qui donnent à l'image sa précision et sa netteté. </p><p>Pour mesurer le piqué d'un point de vue optique, on utilise souvent le critère de la <a href="/wiki/Fonction_de_transfert_de_modulation" class="mw-redirect" title="Fonction de transfert de modulation">MTF</a> qui caractérise la plus haute fréquence spatiale transmise. </p> <figure class="mw-halign-center" typeof="mw:File/Thumb"><a href="/wiki/Fichier:Photographie_piqu%C3%A9e.JPG" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/2/2f/Photographie_piqu%C3%A9e.JPG/600px-Photographie_piqu%C3%A9e.JPG" decoding="async" width="600" height="400" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/2f/Photographie_piqu%C3%A9e.JPG/900px-Photographie_piqu%C3%A9e.JPG 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/2f/Photographie_piqu%C3%A9e.JPG/1200px-Photographie_piqu%C3%A9e.JPG 2x" data-file-width="4608" data-file-height="3072" /></a><figcaption>Exemple d'image fortement piquée. Elle n'est pas retraitée numériquement. Cliquez pour la voir en taille 100%.</figcaption></figure> <p>Le piqué d'une image s'évalue physiquement à 100% de sa taille. Pour autant le piqué peut être ressenti sur une image redimensionnée. </p> <div class="mw-heading mw-heading2"><h2 id="Amélioration_du_piqué"><span id="Am.C3.A9lioration_du_piqu.C3.A9"></span>Amélioration du piqué</h2></div> <div class="mw-heading mw-heading3"><h3 id="Optique">Optique</h3></div> <p>La fermeture du <a href="/wiki/Diaphragme" class="mw-disambig" title="Diaphragme">diaphragme</a> de l'objectif permet une augmentation du piqué de l'objectif. En effet, fermer le diaphragme revient à se rapprocher de l'axe optique et donc les aberrations sont moindres. </p> <div class="mw-heading mw-heading3"><h3 id="Numérique"><span id="Num.C3.A9rique"></span>Numérique</h3></div> <p>De nombreux <a href="/wiki/Logiciel" title="Logiciel">logiciels</a> permettent une accentuation des détails de l'image. Il s'agit souvent d'une augmentation du contraste de l'image à un niveau local. </p> <div class="mw-heading mw-heading2"><h2 id="Objectifs_photographiques_et_piqué"><span id="Objectifs_photographiques_et_piqu.C3.A9"></span>Objectifs photographiques et piqué</h2></div> <p>La recherche du piqué en photographie n'est pas systématique. Les <a href="/wiki/Portrait" title="Portrait">portraits</a> sont parfois fait avec des objectifs peu piqués pour ne pas accentuer les défauts du <a href="/wiki/Visage" title="Visage">visage</a>. Au contraire en photographie <a href="/wiki/Macro" class="mw-disambig" title="Macro">macro</a>, le piqué est impératif. </p> <div class="mw-heading mw-heading2"><h2 id="Références"><span id="R.C3.A9f.C3.A9rences"></span>Références</h2></div> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink noprint"><a href="#cite_ref-1">↑</a> </span><span class="reference-text"><span class="noarchive"><a rel="nofollow" class="external text" href="//books.google.com/books?id=RXoTAQAAQBAJ&pg=PA257"><i>Tous photographes !: 55 leçons pour réussir toutes vos photos</i></a></span> sur <i><a href="/wiki/Google_Livres" title="Google Livres">Google Livres</a></i></span> </li> </ol></div> <div class="mw-heading mw-heading2"><h2 id="Voir_aussi">Voir aussi</h2></div> <ul><li><a href="/wiki/Aberration_optique" class="mw-redirect" title="Aberration optique">Aberration optique</a></li> <li><a href="/wiki/Aberration_chromatique" title="Aberration chromatique">Aberration chromatique</a></li> <li><a href="/wiki/Fr%C3%A9quence_spatiale" title="Fréquence spatiale">Fréquence spatiale</a></li></ul> <ul id="bandeau-portail" class="bandeau-portail"><li><span class="bandeau-portail-element"><span class="bandeau-portail-icone"><span class="noviewer" typeof="mw:File"><a href="/wiki/Portail:Photographie" title="Portail de la photographie"><img alt="icône décorative" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c3/Circle-icons-camera.svg/24px-Circle-icons-camera.svg.png" decoding="async" width="24" height="24" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c3/Circle-icons-camera.svg/36px-Circle-icons-camera.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c3/Circle-icons-camera.svg/48px-Circle-icons-camera.svg.png 2x" data-file-width="512" data-file-height="512" /></a></span></span> <span class="bandeau-portail-texte"><a href="/wiki/Portail:Photographie" title="Portail:Photographie">Portail de la photographie</a></span> </span></li> <li><span class="bandeau-portail-element"><span class="bandeau-portail-icone"><span class="noviewer" typeof="mw:File"><a href="/wiki/Portail:Optique" title="Portail de l’optique"><img alt="icône décorative" src="//upload.wikimedia.org/wikipedia/commons/thumb/6/60/Refraction_of_daylight_through_a_prism.jpg/20px-Refraction_of_daylight_through_a_prism.jpg" decoding="async" width="20" height="24" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/60/Refraction_of_daylight_through_a_prism.jpg/29px-Refraction_of_daylight_through_a_prism.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/60/Refraction_of_daylight_through_a_prism.jpg/39px-Refraction_of_daylight_through_a_prism.jpg 2x" data-file-width="622" data-file-height="759" /></a></span></span> <span class="bandeau-portail-texte"><a href="/wiki/Portail:Optique" title="Portail:Optique">Portail de l’optique</a></span> 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