{"id":222,"date":"2019-04-08T13:44:22","date_gmt":"2019-04-08T11:44:22","guid":{"rendered":"https:\/\/koustrup.com\/?page_id=222"},"modified":"2021-10-09T16:27:14","modified_gmt":"2021-10-09T14:27:14","slug":"comatisk-forvraengning-comatic-aberration","status":"publish","type":"page","link":"https:\/\/foto-video.dk\/?page_id=222","title":{"rendered":"2.1.5: Comatisk forvr\u00e6ngning (comatic aberration)"},"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<p><!-- Hoved Tabel --><\/p>\n<table style=\"width: 99%; float: center; border: 0px; padding: 5px; margin-right: auto; margin-left: auto;\">\n<tbody>\n<tr>\n<td style=\"text-align: left; vertical-align: top; width: 40%; border: 0px; padding: 5px;\"><img decoding=\"async\" class=\"alignnone size-full wp-image-2734\" src=\"https:\/\/foto-video.dk\/wp-content\/uploads\/2021\/10\/comatisk-forvraengning-1.png\" alt=\"\" width=\"502\" height=\"303\" srcset=\"https:\/\/foto-video.dk\/wp-content\/uploads\/2021\/10\/comatisk-forvraengning-1.png 502w, https:\/\/foto-video.dk\/wp-content\/uploads\/2021\/10\/comatisk-forvraengning-1-300x181.png 300w\" sizes=\"(max-width: 502px) 100vw, 502px\" \/><\/td>\n<td style=\"text-align: left; vertical-align: top; width: 60%; border: 0px; padding: 2px;\"><strong>Comatisk forvr\u00e6ngning<\/strong> skyldes ofte objektivets design eller fejl i optikken. Det kommer til udtryk ved at punkter (lys) der er sk\u00e6ve i forhold til den optiske akse vil f\u00e5 en \u2018hale\u2019 af lys som p\u00e5 kometer (deraf navnet coma).\u00a0Comatisk forvr\u00e6ngning er altid til stede i spejlobjektiver (og teleskoper der bruger paraboliske spejle).<br \/>\nMan kan modvirke denne forvr\u00e6ngning vha. korrektionslinser \/ filtre. I linsesystemer (objektiver) kan man reducere eller helt eliminere denne forvr\u00e6ngning ved at v\u00e6lge en anden kurvatur p\u00e5 linserne.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<p style=\"text-align: right;\"><a href=\"https:\/\/foto-video.dk\/?page_id=140\"><strong>Tilbage til objektivet&gt;<\/strong><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Comatisk forvr\u00e6ngning skyldes ofte objektivets design eller fejl i optikken. Det kommer til udtryk ved at punkter (lys) der er sk\u00e6ve i forhold til den optiske akse vil f\u00e5 en \u2018hale\u2019 af lys som p\u00e5 kometer (deraf navnet coma).\u00a0Comatisk forvr\u00e6ngning er altid til stede i spejlobjektiver (og teleskoper der bruger paraboliske spejle). Man kan modvirke [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":140,"menu_order":30,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-222","page","type-page","status-publish","hentry","post"],"_links":{"self":[{"href":"https:\/\/foto-video.dk\/index.php?rest_route=\/wp\/v2\/pages\/222","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=222"}],"version-history":[{"count":4,"href":"https:\/\/foto-video.dk\/index.php?rest_route=\/wp\/v2\/pages\/222\/revisions"}],"predecessor-version":[{"id":2736,"href":"https:\/\/foto-video.dk\/index.php?rest_route=\/wp\/v2\/pages\/222\/revisions\/2736"}],"up":[{"embeddable":true,"href":"https:\/\/foto-video.dk\/index.php?rest_route=\/wp\/v2\/pages\/140"}],"wp:attachment":[{"href":"https:\/\/foto-video.dk\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=222"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}