{"id":397,"date":"2019-04-15T12:16:55","date_gmt":"2019-04-15T10:16:55","guid":{"rendered":"https:\/\/koustrup.com\/?page_id=397"},"modified":"2022-10-03T14:15:09","modified_gmt":"2022-10-03T12:15:09","slug":"dybdeskarphed","status":"publish","type":"page","link":"https:\/\/foto-video.dk\/?page_id=397","title":{"rendered":"4: Dybdeskarphed"},"content":{"rendered":"<nav aria-label=\"breadcrumbs\">\n            <div class=\"breadcrumb-container theme1\">\n                <ol>\n                    <li><a title=\"Du er her\" href=\"#\"><span>Du er her<\/span><\/a><span class=\"separator\">&gt;&gt;<\/span><\/li>\n                    <\/ol>\n            <\/div>\n        <\/nav>    <script type=\"application\/ld+json\">\n        {\n            \"@context\": \"http:\/\/schema.org\",\n            \"@type\": \"BreadcrumbList\",\n            \"itemListElement\": [\n                 {\n                            \"@type\": \"ListItem\",\n                            \"position\": 1,\n                            \"item\": {\n                                \"@id\": \"#\",\n                                \"name\": \"Du er her\"\n                            }\n                        }\n                                                    ]\n        }\n    <\/script>\n   \n    <script>\n            <\/script>\n\n<hr \/>\n<table style=\"width: 99%; float: center; border: 0; padding: 5px; margin-right: auto; margin-left: auto;\">\n<tbody>\n<tr>\n<td style=\"width: 40%; border: 0; vertical-align: top; padding: 5px;\"><a href=\"https:\/\/foto-video.dk\/wp-content\/uploads\/2022\/10\/2019_D810_00577-a-1618x1080-1.jpg\"><br \/>\n<img decoding=\"async\" class=\"alignleft size-medium wp-image-883\" src=\"https:\/\/foto-video.dk\/wp-content\/uploads\/2022\/10\/2019_D810_00577-a-1618x1080-1.jpg\" alt=\"flasker p\u00e5 r\u00e6kke - dybdeskarphed\" width=\"100%\" \/><\/a><\/td>\n<td style=\"text-align: left; border: 0; vertical-align: top; padding: 5px;\"><strong>Dybdeskarphed<\/strong> er et udtryk for, hvor meget der er skarpt i billedet afh\u00e6ngig af distancen fra kameraet.<\/p>\n<ul>\n<li><strong>Bl\u00e6nden<\/strong> bestemmer, <strong>hvor meget lys<\/strong> der lukkes ind <strong>til sensoren<\/strong><\/li>\n<li><strong>Stor bl\u00e6nde\u00e5bning<\/strong> (lille bl\u00e6nde) betyder <strong>mere lys<\/strong><\/li>\n<li><strong>Mere lys<\/strong> \u2013 <strong>h\u00f8jere lukker hastighed<\/strong> \u2013 mindre chance for rystelser<\/li>\n<li><strong>Mere lys<\/strong> \u2013 <strong>lavere ISO<\/strong> \u2013 mindre st\u00f8j<\/li>\n<li>Derfor er det <strong>bedst<\/strong> med <strong>stor bl\u00e6nde\u00e5bning<\/strong>?<\/li>\n<li>&#8230;.. <strong>nej<\/strong> og <strong>ja<\/strong><\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left; width: 40%; border: 0; vertical-align: top; padding: 5px;\">N\u00e5r vi <strong>fokuserer<\/strong> p\u00e5 et bestemt <strong>punkt<\/strong>, vil det kun v\u00e6re punkter der ligger i samme plan, der vil v\u00e6re i <strong>absolut fokus<\/strong> (skarpe).<br \/>\nAlle <strong>andre punkter<\/strong> \u2013 foran eller bagved dette plan &#8211; vil v\u00e6re <strong>uskarpe<\/strong> i mere eller mindre grad.<br \/>\nVores \u00f8jne (i samarbejde med hjernen) kan kompensere for denne uskarphed op til et vist punkt (sl\u00f8ringscirkel \u2013 ca. 0,03 mm). Punkterne ser skarpe ud for os.<br \/>\nDette kaldes <strong>dybdeskarphed<\/strong>.<\/td>\n<td style=\"border: 0; vertical-align: top; padding: 5px;\"><img decoding=\"async\" class=\"wp-image-407 alignright\" src=\"https:\/\/foto-video.dk\/wp-content\/uploads\/2022\/10\/Dybdeskarphed4-1024x667-1.png\" alt=\"Diagram der viser dybdeskarphed\" width=\"512\" height=\"333\" \/><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<table style=\"width: 99%; float: center; border: 0; padding: 5px;\">\n<tbody>\n<tr>\n<td style=\"text-align: left; width: 60%; border: 0; vertical-align: top; padding: 5px;\"><strong>Dybdeskarpheden afh\u00e6nger<\/strong> af \u2013<\/p>\n<ul>\n<li><strong>Bl\u00e6nde\u00e5bningens st\u00f8rrelse<\/strong> (bl\u00e6nden): Mindre f-nummer) betyder mindre dybdeskarphed.<\/li>\n<li><strong>Objektivets br\u00e6ndvidde<\/strong>: L\u00e6ngere br\u00e6ndvidde betyder mindre dybdeskarphed.<\/li>\n<li><strong>Afstanden<\/strong> mellem <strong>kamera<\/strong> og <strong>fokuspunkt<\/strong>: Mindre afstand betyder mindre dybdeskarphed.<\/li>\n<li><strong>Arealet<\/strong> p\u00e5 de enkelte <strong>pixels<\/strong> i sensoren: Mindre areal betyder mindre dybdeskarphed.<\/li>\n<\/ul>\n<\/td>\n<td style=\"border: 0; vertical-align: top; padding: 2px;\"><img decoding=\"async\" class=\"alignright wp-image-412\" src=\"https:\/\/foto-video.dk\/wp-content\/uploads\/2022\/10\/dybdeskarphed5a-768x310-1.png\" alt=\"\" width=\"497\" height=\"200\" \/><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<table style=\"width: 99%; float: left; border: 0; padding: 5px;\">\n<tbody>\n<tr>\n<td style=\"text-align: left; width: 35%; border: 0; vertical-align: top; padding: 5px;\">\u200b<img decoding=\"async\" class=\"wp-image-414 aligncenter\" src=\"https:\/\/foto-video.dk\/wp-content\/uploads\/2022\/10\/cropped-dybdeskarphed6.jpg\" alt=\"Billede af stork\" width=\"294\" height=\"100%\" \/><\/td>\n<td style=\"text-align: left; width: 65%; border: 0; vertical-align: top; padding: 5px;\">Dette kan udnyttes kreativt. Man kan sl\u00f8re baggrunden og derved fremh\u00e6ve hovedmotivet (eller fjerne en rodet baggrund).\u00a0Man kan vha. dybdeskarpheden f\u00e5 landskaber til at v\u00e6re skarpe mod det uendelige.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<table style=\"width: 99%; float: left; border: 0; padding: 5px;\">\n<tbody>\n<tr>\n<td style=\"text-align: left; width: 35%; border: 0; vertical-align: top; padding: 5px;\"><strong>Hvis man vil sl\u00f8re baggrunden, kan man &#8230;<\/strong><\/p>\n<ul>\n<li>G\u00e5 t\u00e6t p\u00e5 motivet (mindske afstanden)<\/li>\n<li>Flytte motivet l\u00e6ngere v\u00e6k fra baggrunden (fx personen v\u00e6k fra den grimme mur)<\/li>\n<li>Bruge en lille bl\u00e6nde<\/li>\n<li>Bruge en l\u00e6ngere br\u00e6ndvidde<\/li>\n<\/ul>\n<p><strong>Hvis man vil have et skarpt billede mod det uendelige, kan man &#8230;<\/strong><\/p>\n<ul>\n<li>Bruge en h\u00f8j bl\u00e6ndev\u00e6rdi (dog ikke for h\u00f8j)<\/li>\n<li>Bruge en lille br\u00e6ndvidde<\/li>\n<li>Udnytte den hyperfokale distance<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p>Dybdeskarphed er et udtryk for, hvor meget der er skarpt i billedet afh\u00e6ngig af distancen fra kameraet. Bl\u00e6nden bestemmer, hvor meget lys der lukkes ind til sensoren Stor bl\u00e6nde\u00e5bning (lille bl\u00e6nde) betyder mere lys Mere lys \u2013 h\u00f8jere lukker hastighed \u2013 mindre chance for rystelser Mere lys \u2013 lavere ISO \u2013 mindre st\u00f8j Derfor er [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":11,"menu_order":20,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-397","page","type-page","status-publish","hentry","post"],"_links":{"self":[{"href":"https:\/\/foto-video.dk\/index.php?rest_route=\/wp\/v2\/pages\/397","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/foto-video.dk\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/foto-video.dk\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/foto-video.dk\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/foto-video.dk\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=397"}],"version-history":[{"count":10,"href":"https:\/\/foto-video.dk\/index.php?rest_route=\/wp\/v2\/pages\/397\/revisions"}],"predecessor-version":[{"id":3055,"href":"https:\/\/foto-video.dk\/index.php?rest_route=\/wp\/v2\/pages\/397\/revisions\/3055"}],"up":[{"embeddable":true,"href":"https:\/\/foto-video.dk\/index.php?rest_route=\/wp\/v2\/pages\/11"}],"wp:attachment":[{"href":"https:\/\/foto-video.dk\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=397"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}