{"id":705,"date":"2018-10-24T13:22:02","date_gmt":"2018-10-24T11:22:02","guid":{"rendered":"https:\/\/www.optics-trade.eu\/blog\/?p=705"},"modified":"2020-04-20T14:13:42","modified_gmt":"2020-04-20T12:13:42","slug":"filled-with","status":"publish","type":"post","link":"https:\/\/www.optics-trade.eu\/blog\/filled-with\/","title":{"rendered":"Filled With | Glossary"},"content":{"rendered":"<p style=\"text-align: justify;\">Optical products are often filled with\u00a0<strong>a dry gas<\/strong>\u00a0to prevent the\u00a0<strong>condensation on the inside<\/strong>\u00a0of the housing when exposing them to temperature extremes. If there is even a slight sign of air inside, there is a certain % of moisture present.<\/p>\n<p style=\"text-align: justify;\">Usually, they\u2019re filled with either\u00a0<strong>argon<\/strong>\u00a0or\u00a0<strong>nitrogen gas<\/strong>, which have the same effect \u2013 to prevent the moisture and internal fogging without affecting the optical properties.<\/p>\n<p style=\"text-align: justify;\">In addition, these gases also prevent the formation of\u00a0<strong>fungus<\/strong>\u00a0which would destroy the optics. Internal dewing was the biggest problem in older binoculars when exposed to lower temperatures because they weren\u2019t watertight and contained air. Newer binoculars are therefore all airtight and filled with dry nitrogen or argon.<\/p>\n<p style=\"text-align: justify;\">\n","protected":false},"excerpt":{"rendered":"<p>Optical products are often filled with\u00a0a dry gas\u00a0to prevent the\u00a0condensation on the inside\u00a0of the housing when exposing them to temperature extremes. If there is even a slight sign of air inside, there is a certain % of moisture present. Usually, they\u2019re filled with either\u00a0argon\u00a0or\u00a0nitrogen gas, which have the same effect \u2013 to prevent the moisture&hellip;&nbsp;<a href=\"https:\/\/www.optics-trade.eu\/blog\/filled-with\/\" rel=\"bookmark\">Read More &raquo;<span class=\"screen-reader-text\">Filled With | Glossary<\/span><\/a><\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","neve_meta_reading_time":"","footnotes":""},"categories":[158,1223,365,325,1227,159,1233,160,1235],"tags":[],"class_list":["post-705","post","type-post","status-publish","format-standard","hentry","category-binoculars","category-binoculars-glossary","category-glossary","category-rangefinders","category-randefinders-glossary","category-riflescopes","category-riflescopes-glossary","category-spotting-scopes","category-spotting-scopes-glossary"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Filled With | Glossary - Optics Trade Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.optics-trade.eu\/blog\/filled-with\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Filled With | Glossary - Optics Trade Blog\" \/>\n<meta property=\"og:description\" content=\"Optical products are often filled with\u00a0a dry gas\u00a0to prevent the\u00a0condensation on the inside\u00a0of the housing when exposing them to temperature extremes. If there is even a slight sign of air inside, there is a certain % of moisture present. Usually, they\u2019re filled with either\u00a0argon\u00a0or\u00a0nitrogen gas, which have the same effect \u2013 to prevent the moisture&hellip;&nbsp;Read More &raquo;Filled With | Glossary\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.optics-trade.eu\/blog\/filled-with\/\" \/>\n<meta property=\"og:site_name\" content=\"Optics Trade Blog\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/OpticsTrade\/\" \/>\n<meta property=\"article:published_time\" content=\"2018-10-24T11:22:02+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2020-04-20T12:13:42+00:00\" \/>\n<meta name=\"author\" content=\"Polona Kraner\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Polona Kraner\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.optics-trade.eu\\\/blog\\\/filled-with\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.optics-trade.eu\\\/blog\\\/filled-with\\\/\"},\"author\":{\"name\":\"Polona Kraner\",\"@id\":\"https:\\\/\\\/www.optics-trade.eu\\\/blog\\\/#\\\/schema\\\/person\\\/dfcd27f8de2a929ca5ffa513b9081d0d\"},\"headline\":\"Filled With | Glossary\",\"datePublished\":\"2018-10-24T11:22:02+00:00\",\"dateModified\":\"2020-04-20T12:13:42+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.optics-trade.eu\\\/blog\\\/filled-with\\\/\"},\"wordCount\":122,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.optics-trade.eu\\\/blog\\\/#organization\"},\"articleSection\":[\"Binoculars\",\"Binoculars - 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