{"id":7686,"date":"2014-10-23T08:51:51","date_gmt":"2014-10-23T06:51:51","guid":{"rendered":"http:\/\/lukse.lt\/uzrasai\/?p=7686"},"modified":"2017-08-27T17:03:45","modified_gmt":"2017-08-27T15:03:45","slug":"custom-made-ir-block-filters-for-c920-case","status":"publish","type":"post","link":"https:\/\/lukse.lt\/uzrasai\/2014-10-custom-made-ir-block-filters-for-c920-case\/","title":{"rendered":"Custom made IR-block filters for C920 case"},"content":{"rendered":"<p style=\"text-align: justify;\"><a href=\"http:\/\/lukse.lt\/uzrasai\/2014-10-custom-made-ir-block-filters-for-c920-case\/\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft wp-image-7690 size-full\" src=\"http:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2014\/10\/IMG_6166_t.jpg\" alt=\"IMG_6166_t\" width=\"200\" height=\"150\"><\/a>In addition to <a href=\"http:\/\/lukse.lt\/uzrasai\/2013-07-modifying-logitech-c920-to-for-cs-lenses\/\">Logitech C920 case<\/a> since now I have also custom made IR blocking filters. These are high quality thin (0.2mm) optical glass filters that blocks all IR light. Picture quality <del>is as good as original filter sourced from Logitech lens assembly<\/del>, well quality is good enough but filtering range is not that good. First batch mistake &#8211; working on improvements.<\/p>\n<div align=\"center\"><!--more--><\/div>\n<h1 style=\"text-align: justify;\">What is it<\/h1>\n<p style=\"text-align: justify;\">In case you missed blog post about custom Logitech C920 case this IR filter is to be used with it. After modification original lens assembly must be removed. IR block filter gets removed as well. Because original filter is not large enough it is impossible to attach it to aluminium case, so I have designed and ordered custom IR-blocking filters. I am offering these in addition to kit already available.<\/p>\n<h1 style=\"text-align: justify;\">&nbsp;<\/h1>\n<p>&nbsp;<\/p>\n<h1 style=\"text-align: justify;\">Mounting options<\/h1>\n<p style=\"text-align: justify;\">Filter is designed to be mounted on aluminium case itself, so image sensor and lens are untouched.<\/p>\n<p style=\"text-align: justify;\">There are two options to mount:<\/p>\n<h1 style=\"text-align: justify;\">&nbsp;<\/h1>\n<div id=\"attachment_7713\" style=\"width: 410px\" class=\"wp-caption aligncenter\"><a onclick=\"javascript:pageTracker._trackPageview('\/downloads\/uzrasai\/wp-content\/uploads\/2014\/10\/filter.png');\"  href=\"http:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2014\/10\/filter.png\" rel=\"lightbox[7686]\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-7713\" class=\"wp-image-7713 size-medium\" src=\"http:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2014\/10\/filter-400x274.png\" alt=\"filter\" width=\"400\" height=\"274\" srcset=\"https:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2014\/10\/filter-400x274.png 400w, https:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2014\/10\/filter-1024x702.png 1024w, https:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2014\/10\/filter.png 1377w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/a><p id=\"caption-attachment-7713\" class=\"wp-caption-text\">Filter dimensions and mounting options<\/p><\/div>\n<p>&nbsp;<\/p>\n<ul>\n<li>Closer to lens &#8211; better option because dust settled on IR filter will be invisible in final image.<\/li>\n<li>Closer to image sensor -there some lenses (mostly cheap ones) that protrude further to sensor and can collide to IR filter.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h1>How to mount<\/h1>\n<p style=\"text-align: justify;\">There are multiple mounting options, I used &#8220;3M 300LSE Double Sided Transparent Adhesive Tape for Cell Phone LCD Repair&#8221;. It is very thin and narrow. Also filter can be glued to case. Most of glues meant for glass\/metal will work, just don&#8217;t use &#8220;super glue&#8221; (glue based on cyanoacrylate) or other that leaves residue when evaporating.<\/p>\n<p>&nbsp;<\/p>\n<h1 style=\"text-align: justify;\">Update 2014-10-24<\/h1>\n<p>After some analysis of existing camera hot mirror \/ low pass filters (which should have been done before ordering filters) noticed that filter is beyond visible range above 50nm. See chart below. Anyway this filter looks like <a onclick=\"javascript:pageTracker._trackPageview('\/outgoing\/www.hoyafilter.com\/hoya\/products\/generalfilters\/uvircut\/');\"  href=\"http:\/\/www.hoyafilter.com\/hoya\/products\/generalfilters\/uvircut\/\">hoya<\/a> filter.<\/p>\n<div id=\"attachment_7759\" style=\"width: 410px\" class=\"wp-caption aligncenter\"><a onclick=\"javascript:pageTracker._trackPageview('\/downloads\/uzrasai\/wp-content\/uploads\/2014\/10\/compare_1.png');\"  href=\"http:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2014\/10\/compare_1.png\" rel=\"lightbox[7686]\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-7759\" class=\"wp-image-7759 size-medium\" src=\"http:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2014\/10\/compare_1-400x179.png\" alt=\"compare_1\" width=\"400\" height=\"179\" srcset=\"https:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2014\/10\/compare_1-400x179.png 400w, https:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2014\/10\/compare_1-1024x459.png 1024w, https:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2014\/10\/compare_1.png 1760w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/a><p id=\"caption-attachment-7759\" class=\"wp-caption-text\">Compare light transfer curves<\/p><\/div>\n<p>I am also working on IR high pass (for filtering out visible light and passing through IR) and green (for laser) filters. If you are interested in in some other specific ones, leave a note.<\/p>\n<p>&nbsp;<\/p>\n<h1>&nbsp;Update 2014-10-26 -various filters mounted on camera<\/h1>\n<p>&nbsp;<\/p>\n<div id=\"attachment_7765\" style=\"width: 410px\" class=\"wp-caption aligncenter\"><a onclick=\"javascript:pageTracker._trackPageview('\/downloads\/uzrasai\/wp-content\/uploads\/2014\/10\/0_no_filter.png');\"  href=\"http:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2014\/10\/0_no_filter.png\" rel=\"lightbox[7686]\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-7765\" class=\"wp-image-7765 size-medium\" src=\"http:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2014\/10\/0_no_filter-400x225.png\" alt=\"0_no_filter\" width=\"400\" height=\"225\" srcset=\"https:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2014\/10\/0_no_filter-400x225.png 400w, https:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2014\/10\/0_no_filter.png 800w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/a><p id=\"caption-attachment-7765\" class=\"wp-caption-text\">No Filter<\/p><\/div>\n<div id=\"attachment_7766\" style=\"width: 410px\" class=\"wp-caption aligncenter\"><a onclick=\"javascript:pageTracker._trackPageview('\/downloads\/uzrasai\/wp-content\/uploads\/2014\/10\/1_C920-original-filter.png');\"  href=\"http:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2014\/10\/1_C920-original-filter.png\" rel=\"lightbox[7686]\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-7766\" class=\"wp-image-7766 size-medium\" src=\"http:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2014\/10\/1_C920-original-filter-400x225.png\" alt=\"1_C920 original filter\" width=\"400\" height=\"225\" srcset=\"https:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2014\/10\/1_C920-original-filter-400x225.png 400w, https:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2014\/10\/1_C920-original-filter.png 800w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/a><p id=\"caption-attachment-7766\" class=\"wp-caption-text\">Original C920 filter IR-cut<\/p><\/div>\n<div id=\"attachment_7767\" style=\"width: 410px\" class=\"wp-caption aligncenter\"><a onclick=\"javascript:pageTracker._trackPageview('\/downloads\/uzrasai\/wp-content\/uploads\/2014\/10\/2_IR-700-filter.png');\"  href=\"http:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2014\/10\/2_IR-700-filter.png\" rel=\"lightbox[7686]\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-7767\" class=\"wp-image-7767 size-medium\" src=\"http:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2014\/10\/2_IR-700-filter-400x225.png\" alt=\"2_IR-700 filter\" width=\"400\" height=\"225\" srcset=\"https:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2014\/10\/2_IR-700-filter-400x225.png 400w, https:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2014\/10\/2_IR-700-filter.png 800w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/a><p id=\"caption-attachment-7767\" class=\"wp-caption-text\">IR-700-cut custom made filter<\/p><\/div>\n<div id=\"attachment_7768\" style=\"width: 410px\" class=\"wp-caption aligncenter\"><a onclick=\"javascript:pageTracker._trackPageview('\/downloads\/uzrasai\/wp-content\/uploads\/2014\/10\/3_green_pass.png');\"  href=\"http:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2014\/10\/3_green_pass.png\" rel=\"lightbox[7686]\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-7768\" class=\"wp-image-7768 size-medium\" src=\"http:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2014\/10\/3_green_pass-400x225.png\" alt=\"3_green_pass\" width=\"400\" height=\"225\" srcset=\"https:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2014\/10\/3_green_pass-400x225.png 400w, https:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2014\/10\/3_green_pass.png 800w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/a><p id=\"caption-attachment-7768\" class=\"wp-caption-text\">Green-pass<\/p><\/div>\n<div id=\"attachment_7769\" style=\"width: 410px\" class=\"wp-caption aligncenter\"><a onclick=\"javascript:pageTracker._trackPageview('\/downloads\/uzrasai\/wp-content\/uploads\/2014\/10\/4_green_pass-ir_cut.png');\"  href=\"http:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2014\/10\/4_green_pass-ir_cut.png\" rel=\"lightbox[7686]\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-7769\" class=\"wp-image-7769 size-medium\" src=\"http:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2014\/10\/4_green_pass-ir_cut-400x225.png\" alt=\"4_green_pass, ir_cut\" width=\"400\" height=\"225\" srcset=\"https:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2014\/10\/4_green_pass-ir_cut-400x225.png 400w, https:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2014\/10\/4_green_pass-ir_cut.png 800w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/a><p id=\"caption-attachment-7769\" class=\"wp-caption-text\">Green-pass + IR-cut<\/p><\/div>\n<div id=\"attachment_7770\" style=\"width: 410px\" class=\"wp-caption aligncenter\"><a onclick=\"javascript:pageTracker._trackPageview('\/downloads\/uzrasai\/wp-content\/uploads\/2014\/10\/5_IR-pass.png');\"  href=\"http:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2014\/10\/5_IR-pass.png\" rel=\"lightbox[7686]\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-7770\" class=\"wp-image-7770 size-medium\" src=\"http:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2014\/10\/5_IR-pass-400x225.png\" alt=\"5_IR-pass\" width=\"400\" height=\"225\" srcset=\"https:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2014\/10\/5_IR-pass-400x225.png 400w, https:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2014\/10\/5_IR-pass.png 800w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/a><p id=\"caption-attachment-7770\" class=\"wp-caption-text\">IR-pass<\/p><\/div>\n<div id=\"attachment_7772\" style=\"width: 410px\" class=\"wp-caption aligncenter\"><a onclick=\"javascript:pageTracker._trackPageview('\/downloads\/uzrasai\/wp-content\/uploads\/2014\/10\/6_UV_pass-IR_block.png');\"  href=\"http:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2014\/10\/6_UV_pass-IR_block.png\" rel=\"lightbox[7686]\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-7772\" class=\"wp-image-7772 size-medium\" src=\"http:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2014\/10\/6_UV_pass-IR_block-400x225.png\" alt=\"6_UV_pass, IR_block\" width=\"400\" height=\"225\" srcset=\"https:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2014\/10\/6_UV_pass-IR_block-400x225.png 400w, https:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2014\/10\/6_UV_pass-IR_block.png 800w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/a><p id=\"caption-attachment-7772\" class=\"wp-caption-text\">UV-pass + IR-cut<\/p><\/div>\n<p>&nbsp;<\/p>\n<h1>Update 2014-10-29 &#8211; measured filters<\/h1>\n<p>&nbsp;<\/p>\n<div id=\"attachment_7777\" style=\"width: 410px\" class=\"wp-caption aligncenter\"><a onclick=\"javascript:pageTracker._trackPageview('\/downloads\/uzrasai\/wp-content\/uploads\/2014\/10\/C920-vs-IR700.png');\"  href=\"http:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2014\/10\/C920-vs-IR700.png\" rel=\"lightbox[7686]\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-7777\" class=\"wp-image-7777 size-medium\" src=\"http:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2014\/10\/C920-vs-IR700-400x196.png\" alt=\"C920 vs IR700\" width=\"400\" height=\"196\" srcset=\"https:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2014\/10\/C920-vs-IR700-400x196.png 400w, https:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2014\/10\/C920-vs-IR700-1024x504.png 1024w, https:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2014\/10\/C920-vs-IR700.png 1280w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/a><p id=\"caption-attachment-7777\" class=\"wp-caption-text\">C920 original filter compared to IR-700. About 50nm of IR is allowed to pass to sensor.<\/p><\/div>\n<p>&nbsp;<\/p>\n<h1>Update 2014-12-03 &#8211; received IR650<\/h1>\n<p>&nbsp;<\/p>\n<p>Received new filters that perform like original C920.<\/p>\n<p>Here is sample picture<\/p>\n<div id=\"attachment_8294\" style=\"width: 366px\" class=\"wp-caption aligncenter\"><a onclick=\"javascript:pageTracker._trackPageview('\/downloads\/uzrasai\/wp-content\/uploads\/2014\/10\/compare_filters.png');\"  href=\"http:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2014\/10\/compare_filters.png\" rel=\"lightbox[7686]\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-8294\" class=\"wp-image-8294 size-medium\" src=\"http:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2014\/10\/compare_filters-356x400.png\" alt=\"compare_filters\" width=\"356\" height=\"400\" srcset=\"https:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2014\/10\/compare_filters-356x400.png 356w, https:\/\/lukse.lt\/uzrasai\/wp-content\/uploads\/2014\/10\/compare_filters.png 800w\" sizes=\"auto, (max-width: 356px) 100vw, 356px\" \/><\/a><p id=\"caption-attachment-8294\" class=\"wp-caption-text\">Compare new filter against no filter. Results are perfect!<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>In addition to Logitech C920 case since now I have also custom made IR blocking filters. These are high quality thin (0.2mm) optical glass filters that blocks all IR light. Picture quality is as good as original filter sourced from Logitech lens assembly, well quality is good enough but filtering range is not that good. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[38,21,5],"tags":[],"class_list":["post-7686","post","type-post","status-publish","format-standard","hentry","category-in-english","category-projektai","category-uzrasai"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/p2rU5c-1ZY","jetpack_sharing_enabled":true,"jetpack_likes_enabled":true,"_links":{"self":[{"href":"https:\/\/lukse.lt\/uzrasai\/wp-json\/wp\/v2\/posts\/7686","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lukse.lt\/uzrasai\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lukse.lt\/uzrasai\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lukse.lt\/uzrasai\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lukse.lt\/uzrasai\/wp-json\/wp\/v2\/comments?post=7686"}],"version-history":[{"count":44,"href":"https:\/\/lukse.lt\/uzrasai\/wp-json\/wp\/v2\/posts\/7686\/revisions"}],"predecessor-version":[{"id":8793,"href":"https:\/\/lukse.lt\/uzrasai\/wp-json\/wp\/v2\/posts\/7686\/revisions\/8793"}],"wp:attachment":[{"href":"https:\/\/lukse.lt\/uzrasai\/wp-json\/wp\/v2\/media?parent=7686"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lukse.lt\/uzrasai\/wp-json\/wp\/v2\/categories?post=7686"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lukse.lt\/uzrasai\/wp-json\/wp\/v2\/tags?post=7686"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}