{"id":50469,"date":"2026-03-13T23:25:32","date_gmt":"2026-03-13T22:25:32","guid":{"rendered":"https:\/\/kart.no\/produkt\/cassens-plath-prism-level-black\/"},"modified":"2026-03-13T23:25:32","modified_gmt":"2026-03-13T22:25:32","slug":"cassens-plath-prism-level-black","status":"publish","type":"product","link":"https:\/\/kart.no\/en\/produkt\/cassens-plath-prism-level-black\/","title":{"rendered":"Cassens &amp; Plath Prism Level &#8211; Black"},"content":{"rendered":"<p data-start=\"1273\" data-end=\"1722\"><strong data-start=\"1273\" data-end=\"1312\">Cassens &amp; Plath Prism Level &#8211; Black<\/strong> is a retrofit prism level designed for use with <strong data-start=\"1368\" data-end=\"1419\">Cassens &amp; Plath sextants with full-view mirror<\/strong>. The accessory helps the user to see if the sextant is held in the correct vertical position during observation. When the instrument is tilted, the horizon line seen through the prism will shift relative to the true horizon, allowing errors to be detected and corrected.  <\/p>\n<p data-start=\"1724\" data-end=\"2092\">The manufacturer describes the solution as a glass prism for retrofitting, and in the product overview it is referred to as a prism level for self-assembly with a similar function to a Sch\u00fcler double-prism. This makes the product a useful upgrade option for navigators who want better control of tilt errors in astronomical navigation. <\/p>\n<p data-start=\"2094\" data-end=\"2256\">Supplied in <strong data-start=\"2104\" data-end=\"2123\">black<\/strong> and as <strong data-start=\"2131\" data-end=\"2152\">1 prism level<\/strong> in the package. The manufacturer&#8217;s item number for the black model is <strong data-start=\"2207\" data-end=\"2217\">44100S<\/strong>. <\/p>\n","protected":false},"excerpt":{"rendered":"<p>Retrofittable prism level in black for Cassens &amp; Plath sextants with full-view mirror. Makes it easier to detect tilt during observation and contributes to more precise measurements. <\/p>\n","protected":false},"featured_media":42715,"comment_status":"open","ping_status":"closed","template":"","meta":{"_uag_custom_page_level_css":""},"product_brand":[1379],"product_cat":[1101],"product_tag":[],"class_list":{"0":"post-50469","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-cassens-plath","7":"product_cat-accessories-for-sextants","9":"first","10":"onbackorder","11":"taxable","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"composite_virtual":false,"composite_layout":"","composite_add_to_cart_form_location":"","composite_editable_in_cart":false,"composite_sold_individually_context":"","composite_shop_price_calc":"","composite_components":[],"composite_scenarios":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.4 (Yoast SEO v27.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Cassens &amp; Plath Prism Level - Black | Prism level for sextant<\/title>\n<meta name=\"description\" content=\"Retrofit prism level in black for Cassens &amp; Plath sextants with full-view mirror. Original sextant accessory that helps detect tilt errors during observation.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/kart.no\/en\/produkt\/cassens-plath-prism-level-black\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cassens &amp; Plath Prism Level - Black\" \/>\n<meta property=\"og:description\" content=\"Retrofit prism level in black for Cassens &amp; Plath sextants with full-view mirror. 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