{"id":3809,"date":"2025-03-06T20:32:20","date_gmt":"2025-03-06T19:32:20","guid":{"rendered":"https:\/\/deep-space-astronomy.geekworkers.dev\/produit\/colour-magic-2-oiii-3nm\/"},"modified":"2025-06-03T10:40:42","modified_gmt":"2025-06-03T08:40:42","slug":"colour-magic-2-oiii-3nm","status":"publish","type":"product","link":"https:\/\/deep-space-astronomy.ch\/en\/product\/colour-magic-2-oiii-3nm\/","title":{"rendered":"Colour Magic 2\u2033 OIII 3nm"},"content":{"rendered":"<h2>Askar Colour Magic 2\u201d OIII 3nm filter<\/h2>\n<p>Visit <strong>Askar Colour Magic 2\u201d OIII 3nm filter<\/strong> is a specialized narrow-band filter for astrophotography, designed to capture ionized oxygen 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 500.7 nm (OIII line)<\/li>\n<li><strong>Format:<\/strong> 2\" (50.8 mm)<\/li>\n<li><strong>Maximum transmission :<\/strong> Approx. 85-90% at 500.7 nm<\/li>\n<li><strong>Thickness :<\/strong> 1.85 \u00b1 0.05 mm<\/li>\n<li><strong>Optimization :<\/strong> Reduces halos around bright stars<\/li>\n<\/ul>\n<h3>Benefits<\/h3>\n<ul>\n<li><strong>Contrast enhancement :<\/strong> Enhances the contrast of OIII-emitting nebulae.<\/li>\n<li><strong>Imaging in conditions of high light pollution :<\/strong> Allows imaging even under polluted skies.<\/li>\n<li><strong>Reduced star intensity:<\/strong> Reduces the intensity of surrounding stars for better contrast.<\/li>\n<li><strong>Compatibility with other filters :<\/strong> Can be used in combination with H-alpha and SII filters to create Hubble palette images (SHO).<\/li>\n<\/ul>\n<h3>Astrophotography applications<\/h3>\n<p>The filter <strong>Askar Colour Magic OIII 3nm<\/strong> is particularly suitable for :<\/p>\n<ul>\n<li><strong>Imaging planetary nebulae :<\/strong> Ideal for capturing the details of OIII-rich planetary nebulae.<\/li>\n<li><strong>Capturing supernova slag :<\/strong> Perfect for photographing supernova remnants rich in ionized oxygen.<\/li>\n<li><strong>Photographing diffuse nebulae :<\/strong> Capture the details of diffuse nebulae emitting ionized oxygen.<\/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 OIII-emitting objects, even under difficult viewing conditions.<\/p>\n<h3>Conclusion<\/h3>\n<p>Visit <strong>Askar Colour Magic OIII 3nm 2\u201d filter\u201d<\/strong> is an essential choice for astrophotographers specializing in the imaging of OIII nebulae and celestial objects. Its ability to increase contrast and reduce halos, while allowing imaging in light-polluted conditions, makes it an indispensable tool for deep-sky observers.<\/p>","protected":false},"excerpt":{"rendered":"<p>Filtre Askar Colour Magic 2\u201d OIII 3nm Le filtre Askar Colour Magic 2\u201d OIII 3nm est un filtre \u00e0 bande \u00e9troite sp\u00e9cialis\u00e9 pour l\u2019astrophotographie, con\u00e7u pour capturer les \u00e9missions d\u2019oxyg\u00e8ne ionis\u00e9 dans les n\u00e9buleuses. Voici ses principales caract\u00e9ristiques : Sp\u00e9cifications techniques Bande passante : 3 nm centr\u00e9e sur 500,7 nm (raie OIII) Format : 2\u201d [&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-3809","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\/3809","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=3809"}],"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=3809"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_brand?post=3809"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_cat?post=3809"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_tag?post=3809"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}