{"id":3813,"date":"2025-03-06T20:32:47","date_gmt":"2025-03-06T19:32:47","guid":{"rendered":"https:\/\/deep-space-astronomy.geekworkers.dev\/produit\/colour-magic-2-sii-3nm\/"},"modified":"2025-06-03T10:40:42","modified_gmt":"2025-06-03T08:40:42","slug":"colour-magic-2-sii-3nm","status":"publish","type":"product","link":"https:\/\/deep-space-astronomy.ch\/en\/product\/colour-magic-2-sii-3nm\/","title":{"rendered":"Colour Magic 2\u2033 SII 3nm"},"content":{"rendered":"<h2>Askar Colour Magic SII 3nm 2\u201d filter\u201d<\/h2>\n<p>Visit <strong>Askar Colour Magic SII 3nm 2\u201d filter\u201d<\/strong> is a specialized narrow-band filter for astrophotography, designed to capture ionized sulfur emissions in nebulae. Its main features are as follows:<\/p>\n<h3>Technical specifications<\/h3>\n<ul>\n<li><strong>Bandwidth :<\/strong> 3 nm centered on 672 nm (SII line)<\/li>\n<li><strong>Format:<\/strong> 2\u201d (50.8 mm) with M48x0.75 male thread<\/li>\n<li><strong>Maximum transmission :<\/strong> More than 90% at 672 nm<\/li>\n<li><strong>Thickness :<\/strong> 1.85 \u00b1 0.05 mm<\/li>\n<li><strong>Barrier property :<\/strong> \u2265OD5 at 200-1100 nm<\/li>\n<\/ul>\n<h3>Benefits<\/h3>\n<ul>\n<li><strong>Enhanced contrast :<\/strong> Greatly increases the contrast of nebulae emitting in SII.<\/li>\n<li><strong>Reducing light pollution :<\/strong> Effectively blocks light pollution and night glow.<\/li>\n<li><strong>Reduced star intensity:<\/strong> Reduces the intensity of surrounding stars.<\/li>\n<li><strong>Compatibility with other filters :<\/strong> Can be used in combination with H-alpha and OIII filters to create Hubble palette images (SHO).<\/li>\n<\/ul>\n<h3>Astrophotography applications<\/h3>\n<p>The filter <strong>Askar Colour Magic SII 3nm 2\u201d<\/strong> is particularly suitable for :<\/p>\n<ul>\n<li><strong>Imaging emission nebulae :<\/strong> Ideal for capturing the details of nebulae rich in ionized sulfur.<\/li>\n<li><strong>Capturing planetary nebulae :<\/strong> Perfect for photographing planetary nebulae and their delicate structures.<\/li>\n<li><strong>Photograph of supernovae remnants :<\/strong> Useful for astrophotographers seeking to capture the phenomena of supernovae and their remains.<\/li>\n<\/ul>\n<h3>Additional considerations<\/h3>\n<p>It's important to note that this filter requires longer exposure times due to its very narrow bandwidth. However, it offers an excellent signal-to-noise ratio for SII-emitting objects, even under difficult viewing conditions.<\/p>\n<h3>Conclusion<\/h3>\n<p>Visit <strong>Askar Colour Magic SII 3nm 2\u201d filter\u201d<\/strong> is an excellent choice for astrophotographers specializing in imaging nebulae and celestial objects emitting in the SII line. Its ability to block light pollution while offering exceptional contrast makes it an essential tool for capturing detailed images of the deep sky.<\/p>","protected":false},"excerpt":{"rendered":"<p>Filtre Askar Colour Magic SII 3nm 2\u201d Le filtre Askar Colour Magic SII 3nm 2\u201d est un filtre \u00e0 bande \u00e9troite sp\u00e9cialis\u00e9 pour l\u2019astrophotographie, con\u00e7u pour capturer les \u00e9missions de soufre ionis\u00e9 dans les n\u00e9buleuses. Voici ses principales caract\u00e9ristiques : Sp\u00e9cifications techniques Bande passante : 3 nm centr\u00e9e sur 672 nm (raie SII) Format : [&hellip;]<\/p>\n","protected":false},"featured_media":6752,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[382],"product_cat":[780],"product_tag":[],"class_list":{"0":"post-3813","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-askar","7":"product_cat-filtres-bande-etroite","9":"first","10":"on_supplier","11":"taxable","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product\/3813","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/comments?post=3813"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media\/6752"}],"wp:attachment":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media?parent=3813"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_brand?post=3813"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_cat?post=3813"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_tag?post=3813"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}