{"id":11101,"date":"2021-11-11T11:12:48","date_gmt":"2021-11-11T10:12:48","guid":{"rendered":"https:\/\/book2net.net\/2021\/11\/11\/vignetting\/"},"modified":"2022-06-15T12:34:02","modified_gmt":"2022-06-15T10:34:02","slug":"vignetting","status":"publish","type":"post","link":"https:\/\/book2net.net\/en\/2021\/11\/11\/vignetting\/","title":{"rendered":"Vignetting"},"content":{"rendered":"\n<p><span style=\"font-size: 120%;\">In photographic technology, optical vignetting (edge decoration) is an effect that may be wanted in artistic photography, but is not desired when digitizing documents, which require a true-to-original capturing. Vignetting is essentially a decrease in brightness towards the edge area of the image, which is caused by the light guidance through the objective and the axially arranged openings connected to it.<\/span><\/p>\n<p><span style=\"font-size: 120%;\">The resulting images are significantly darker due to the drop in light from the edge and mostly the \u201clighter\u201d center of the image is shown in a circle.<\/span><\/p>\n<blockquote>\n<p><span style=\"font-size: 100%;\">In order to avoid this effect with our scanners, we work with special lenses in which this effect has already been corrected, unlike conventional camera lenses. Subsequent image manipulation or correction using software is therefore not necessary.<\/span><\/p>\n<\/blockquote>\n\t<div id=\"gap-1611160109\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-1611160109 {\n  padding-top: 30px;\n}\n<\/style>\n\t<\/div>\n\t\n\n<div class=\"row\"  id=\"row-718875701\">\n\n\n\t<div id=\"col-445387644\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n\t<div class=\"box has-hover   has-hover box-text-bottom\" >\n\n\t\t<div class=\"box-image\" style=\"width:43%;\">\n\t\t\t\t\t\t<div class=\"\" >\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\t<div class=\"box-text text-center\" >\n\t\t\t<div class=\"box-text-inner\">\n\t\t\t\t\n\n<h4>Vignetting<\/h4>\n<p>When taking a picture with a microscope through the eyepiece. This photo was taken &#8220;freehand&#8221; with a compact camera above the microscope eyepiece.<br>Due to lack of optical adjustment, the edge of the camera sensor cannot be exposed.<\/p>\n<p><span style=\"font-size: 75%;\">Source: <a href=\"https:\/\/commons.wikimedia.org\/wiki\/File:Randabschattung_Mikroskop_Kamera_6.JPG\">Wikipedia Commons&nbsp;<\/a>(unchanged)&nbsp;<\/span><span style=\"font-size: 75%;\"> Copyright: <a class=\"extiw\" title=\"w:en:Creative Commons\" href=\"https:\/\/en.wikipedia.org\/wiki\/en:Creative_Commons\">Creative Commons<\/a>&nbsp;<a class=\"external text\" href=\"https:\/\/creativecommons.org\/licenses\/by-sa\/3.0\/deed.en\" rel=\"nofollow\">Attribution-Share Alike 3.0 Unported<\/a><\/span><b><\/b><\/p>\n\n\t\t\t<\/div>\n\t\t<\/div>\n\t<\/div>\n\t\n\t<div id=\"gap-168559646\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-168559646 {\n  padding-top: 30px;\n}\n<\/style>\n\t<\/div>\n\t\n\n<div class=\"container section-title-container\" ><h3 class=\"section-title section-title-normal\"><b><\/b><span class=\"section-title-main\" >Related Topics<\/span><b><\/b><\/h3><\/div>\n\n\n  \n    <div class=\"row large-columns-3 medium-columns-1 small-columns-1 has-shadow row-box-shadow-2 row-box-shadow-5-hover slider row-slider slider-nav-reveal slider-nav-push\"  data-flickity-options='{&quot;imagesLoaded&quot;: true, &quot;groupCells&quot;: &quot;100%&quot;, &quot;dragThreshold&quot; : 5, &quot;cellAlign&quot;: &quot;left&quot;,&quot;wrapAround&quot;: true,&quot;prevNextButtons&quot;: true,&quot;percentPosition&quot;: true,&quot;pageDots&quot;: false, &quot;rightToLeft&quot;: false, &quot;autoPlay&quot; : false}' >\n\n  <div class=\"col post-item\" >\n\t\t\t<div class=\"col-inner\">\n\t\t\t\t<div class=\"box box-normal box-text-bottom box-blog-post has-hover\">\n          \t\t\t\t\t<div class=\"box-text text-left\" >\n\t\t\t\t\t<div class=\"box-text-inner blog-post-inner\">\n\n\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t<h5 class=\"post-title is-large \">\n\t\t\t\t\t\t<a href=\"https:\/\/book2net.net\/en\/2021\/06\/07\/apochromat-apochromatic\/\" class=\"plain\">Apochromat \/ apochromatic<\/a>\n\t\t\t\t\t<\/h5>\n\t\t\t\t\t\t\t\t\t\t<div class=\"is-divider\"><\/div>\n\t\t\t\t\t\t\t\t\t\t<p class=\"from_the_blog_excerpt \">\n\t\t\t\t\t\tWhen light passes through an optical system (lenses made of glass), so-called [...]\t\t\t\t\t<\/p>\n\t\t\t\t\t                    \n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/book2net.net\/en\/2021\/06\/07\/apochromat-apochromatic\/\" class=\"button  is-underline is-large mb-0\">\n\t\t\t\t\t\t\tREAD MORE\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div><div class=\"col post-item\" >\n\t\t\t<div class=\"col-inner\">\n\t\t\t\t<div class=\"box box-normal box-text-bottom box-blog-post has-hover\">\n          \t\t\t\t\t<div class=\"box-text text-left\" >\n\t\t\t\t\t<div class=\"box-text-inner blog-post-inner\">\n\n\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t<h5 class=\"post-title is-large \">\n\t\t\t\t\t\t<a href=\"https:\/\/book2net.net\/en\/2021\/09\/13\/lens\/\" class=\"plain\">Lens<\/a>\n\t\t\t\t\t<\/h5>\n\t\t\t\t\t\t\t\t\t\t<div class=\"is-divider\"><\/div>\n\t\t\t\t\t\t\t\t\t\t<p class=\"from_the_blog_excerpt \">\n\t\t\t\t\t\tEvery camera needs a lens to project the object or the image [...]\t\t\t\t\t<\/p>\n\t\t\t\t\t                    \n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/book2net.net\/en\/2021\/09\/13\/lens\/\" class=\"button  is-underline is-large mb-0\">\n\t\t\t\t\t\t\tREAD MORE\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div><\/div>\n\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>In photographic technology, optical vignetting (edge decoration) is an effect that may be wanted in artistic photography, but is not desired when digitizing documents, which require a true-to-original capturing.<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[279,409],"tags":[],"class_list":["post-11101","post","type-post","status-publish","format-standard","hentry","category-glossary","category-v-glossary"],"_links":{"self":[{"href":"https:\/\/book2net.net\/en\/wp-json\/wp\/v2\/posts\/11101","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/book2net.net\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/book2net.net\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/book2net.net\/en\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/book2net.net\/en\/wp-json\/wp\/v2\/comments?post=11101"}],"version-history":[{"count":14,"href":"https:\/\/book2net.net\/en\/wp-json\/wp\/v2\/posts\/11101\/revisions"}],"predecessor-version":[{"id":16266,"href":"https:\/\/book2net.net\/en\/wp-json\/wp\/v2\/posts\/11101\/revisions\/16266"}],"wp:attachment":[{"href":"https:\/\/book2net.net\/en\/wp-json\/wp\/v2\/media?parent=11101"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/book2net.net\/en\/wp-json\/wp\/v2\/categories?post=11101"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/book2net.net\/en\/wp-json\/wp\/v2\/tags?post=11101"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}