{"id":773,"date":"2019-05-03T14:52:36","date_gmt":"2019-05-03T12:52:36","guid":{"rendered":"https:\/\/koustrup.com\/?page_id=773"},"modified":"2022-10-03T14:57:42","modified_gmt":"2022-10-03T12:57:42","slug":"sloeringscirkel-og-sensorstoerrelse","status":"publish","type":"page","link":"https:\/\/foto-video.dk\/?page_id=773","title":{"rendered":"4.2: Sl\u00f8ringscirkel og sensorst\u00f8rrelse"},"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<div style=\"color: black;\">\n<table style=\"width: 100%; float: center; border: 0; padding: 10px; margin-right: auto; margin-left: auto;\">\n<tbody>\n<tr>\n<td style=\"text-align: center; vertical-align: middle; width: 30%; border: 0; padding: 5px;\"><strong>Lille pixelareal<\/strong><\/td>\n<td style=\"text-align: left; vertical-align: middle; width: 40%; border: 0; padding: 5px;\"><\/td>\n<td style=\"text-align: center; vertical-align: middle; border: 0; padding: 5px;\"><b>Stort pixelareal<\/b><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left; vertical-align: top; width: 30%; border: 0; padding: 5px;\"><img decoding=\"async\" src=\"https:\/\/foto-video.dk\/wp-content\/uploads\/2022\/10\/dybdeskarphed3a-1a.png\" alt=\"pixelareal lille\" height=\"201\" \/><\/td>\n<td style=\"text-align: left; vertical-align: top; width: 40%; border: 0; padding: 5px;\">Punktet i fokusplanet er skarpt uden sl\u00f8ringscirkel og kun det pixel hvor punktet ligger i, bliver aktiveret.<br \/>\nDette g\u00e6lder for begge pixelarealer.<\/td>\n<td style=\"text-align: left; vertical-align: top; border: 0; padding: 5px;\"><img decoding=\"async\" src=\"https:\/\/foto-video.dk\/wp-content\/uploads\/2022\/10\/dybdeskarphed3b-1a.png\" alt=\"stort pixelareal\" height=\"201\" \/><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center; vertical-align: middle; border: 0; padding: 5px;\" colspan=\"3\">\n<hr \/>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left; vertical-align: top; width: 30%; border: 0; padding: 5px;\">\n<img decoding=\"async\" src=\"https:\/\/foto-video.dk\/wp-content\/uploads\/2022\/10\/dybdeskarphed3a-2a.png\" alt=\"lille pixel areal 2\" height=\"201\" \/>\n<\/td>\n<td style=\"text-align: left; vertical-align: top; width: 40%; border: 0; padding: 5px;\">\nI en vis distance fra fokusplanet, vil sl\u00f8ringscirklens diameter v\u00e6re lig med (eller mindre end) det mindste pixelareals sidel\u00e6ngde.<\/p>\n<p>Derfor er det kun den pixel der bliver aktiveret, punktet vil stadig virke skarpt for begge pixelst\u00f8rrelser.<\/td>\n<td style=\"text-align: left; vertical-align: top; border: 0; padding: 5px;\">\n<img decoding=\"async\" src=\"https:\/\/foto-video.dk\/wp-content\/uploads\/2022\/10\/dybdeskarphed3b-2a.png\" alt=\"stort pixelareal 2\" height=\"201\" \/>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center; vertical-align: middle; border: 0; padding: 5px;\" colspan=\"3\">\n<hr \/>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left; vertical-align: top; width: 30%; border: 0; padding: 5px;\">\n<img decoding=\"async\" src=\"https:\/\/foto-video.dk\/wp-content\/uploads\/2022\/10\/dybdeskarphed3a-3a.png\" alt=\"lille pixelareal 3\" height=\"201\" \/><\/td>\n<td style=\"text-align: left; vertical-align: top; width: 40%; border: 0; padding: 5px;\">Sl\u00f8ringscirklens diameter bliver nu st\u00f8rre end sidel\u00e6ngden p\u00e5 det mindste pixelareal.<\/p>\n<p>Derfor vil nabopixels blive aktiveret (mindre niveau). det betyder, at nu vil punktet se sl\u00f8ret ud p\u00e5 det mindste pixelareal.<\/p>\n<p>Punktet vil fortsat v\u00e6re skarpt p\u00e5 det st\u00f8rre pixelareal.<\/td>\n<td style=\"text-align: left; vertical-align: top; border: 0; padding: 5px;\">\n<img decoding=\"async\" src=\"https:\/\/foto-video.dk\/wp-content\/uploads\/2022\/10\/dybdeskarphed3b-3a.png\" alt=\"stort pixelareal 3\" height=\"201\" \/><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center; vertical-align: middle; border: 0; padding: 5px;\" colspan=\"3\">\n<hr \/>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left; vertical-align: top; width: 30%; border: 0; padding: 5px;\">\n<img decoding=\"async\" src=\"https:\/\/foto-video.dk\/wp-content\/uploads\/2022\/10\/dybdeskarphed3a-4a.png\" alt=\"lille pixelareal 4\" height=\"201\" \/><\/td>\n<td style=\"text-align: left; vertical-align: top; width: 40%; border: 0; padding: 5px;\">Sl\u00f8ringscirklens diameter er nu st\u00f8rre end begge pixelarealers sidel\u00e6ngde og i begge tilf\u00e6lde vil punktet nu v\u00e6re uskarpt.<\/p>\n<p>Da sl\u00f8ringcirklen overskrider n\u00e6ste &#8216;ring&#8217; af pixels p\u00e5 det lille pixelareal, vil punktet v\u00e6re mere uskarpt end p\u00e5 det store pixelareal.<\/td>\n<td style=\"text-align: left; vertical-align: top; border: 0; padding: 5px;\">\n<img decoding=\"async\" src=\"https:\/\/foto-video.dk\/wp-content\/uploads\/2022\/10\/dybdeskarphed3b-4a.png\" alt=\"stort pixelareal 4\" height=\"201\" \/><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center; vertical-align: middle; border: 0; padding: 5px;\" colspan=\"3\">\n<hr \/>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left; vertical-align: middle; border: 0; padding: 5px;\" colspan=\"3\">Som man kan se af ovenst\u00e5ende, vil en mindre sl\u00f8ringscirkel f\u00f8rst overskride det centrale pixels gr\u00e6nser. Derfor vil sensoren med et mindre pixelareal (mindre sidel\u00e6ngde) begynde at blive uskarpt f\u00f8r sensoren med et st\u00f8rre pixelareal.<\/p>\n<p>Det betyder, at sensoren med det mindre pixelareal har en mindre dybdeskarphed end sensoren med det st\u00f8rre pixelareal.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Lille pixelareal Stort pixelareal Punktet i fokusplanet er skarpt uden sl\u00f8ringscirkel og kun det pixel hvor punktet ligger i, bliver aktiveret. Dette g\u00e6lder for begge pixelarealer. I en vis distance fra fokusplanet, vil sl\u00f8ringscirklens diameter v\u00e6re lig med (eller mindre end) det mindste pixelareals sidel\u00e6ngde. Derfor er det kun den pixel der bliver aktiveret, punktet [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":397,"menu_order":20,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-773","page","type-page","status-publish","hentry","post"],"_links":{"self":[{"href":"https:\/\/foto-video.dk\/index.php?rest_route=\/wp\/v2\/pages\/773","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=773"}],"version-history":[{"count":15,"href":"https:\/\/foto-video.dk\/index.php?rest_route=\/wp\/v2\/pages\/773\/revisions"}],"predecessor-version":[{"id":3083,"href":"https:\/\/foto-video.dk\/index.php?rest_route=\/wp\/v2\/pages\/773\/revisions\/3083"}],"up":[{"embeddable":true,"href":"https:\/\/foto-video.dk\/index.php?rest_route=\/wp\/v2\/pages\/397"}],"wp:attachment":[{"href":"https:\/\/foto-video.dk\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=773"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}