{"product_id":"lunt-ls40fha-h-alpha-double-stack-filter-for-ls40tha","title":"LUNT LS40FHa H-alpha Double-Stack Filter for LS40THa","description":"\u003ch2\u003eReveal More of the Sun – Enhanced Contrast with the LS40FHa Double-Stack Filter\u003c\/h2\u003e\n\u003cp data-start=\"241\" data-end=\"566\"\u003eEnhance your solar viewing experience with the \u003cstrong data-start=\"288\" data-end=\"324\"\u003eLUNT LS40FHa double-stack filter\u003c\/strong\u003e, designed specifically for the \u003cstrong data-start=\"356\" data-end=\"383\"\u003eLS40THa solar telescope\u003c\/strong\u003e. This add-on filter narrows the bandwidth of the H-alpha system to \u003cstrong data-start=\"451\" data-end=\"478\"\u003eless than 0.55 Ångström\u003c\/strong\u003e, dramatically improving image contrast and revealing finer surface features on the Sun.\u003c\/p\u003e\n\u003cp data-start=\"241\" data-end=\"566\"\u003e\u003cimg\u003e\u003cimg src=\"https:\/\/www.robtics.nl\/30247-thickbox_default\/lunt-ls40fha-h-alpha-double-stack-filter-for-ls40tha.jpg\" alt=\"LUNT LS40FHa H-alpha double-stack Filter for LS40THa\"\u003e\u003c\/p\u003e\n\u003ch3 data-start=\"568\" data-end=\"589\"\u003e\u003cstrong data-start=\"572\" data-end=\"589\"\u003eWhat It Does:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"590\" data-end=\"932\"\u003e\n\u003cli data-start=\"590\" data-end=\"665\"\u003eReduces the bandwidth to \u0026lt;0.55 Å, increasing contrast in H-alpha light.\u003c\/li\u003e\n\u003cli data-start=\"666\" data-end=\"765\"\u003eReveals more detailed solar structures such as filaments, prominences, and surface granulation.\u003c\/li\u003e\n\u003cli data-start=\"766\" data-end=\"854\"\u003eImproves visibility of subtle features that are less defined in single-stack setups.\u003c\/li\u003e\n\u003cli data-start=\"855\" data-end=\"932\"\u003eUses mechanical tilt-tuning for precise adjustment and optimal performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"934\" data-end=\"964\"\u003e\u003cstrong data-start=\"938\" data-end=\"964\"\u003eWhy You Should Buy It:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"965\" data-end=\"1382\"\u003e\n\u003cli data-start=\"965\" data-end=\"1050\"\u003e\n\u003cstrong data-start=\"967\" data-end=\"983\"\u003eMore Detail:\u003c\/strong\u003e See significantly more contrast and structure on the solar disc.\u003c\/li\u003e\n\u003cli data-start=\"1051\" data-end=\"1158\"\u003e\n\u003cstrong data-start=\"1053\" data-end=\"1088\"\u003eProfessional-Grade Performance:\u003c\/strong\u003e Ideal for serious solar observers seeking a deeper level of detail.\u003c\/li\u003e\n\u003cli data-start=\"1159\" data-end=\"1269\"\u003e\n\u003cstrong data-start=\"1161\" data-end=\"1186\"\u003eSeamless Integration:\u003c\/strong\u003e Designed specifically for the LS40THa—compact, lightweight, and easy to install.\u003c\/li\u003e\n\u003cli data-start=\"1270\" data-end=\"1382\"\u003e\n\u003cstrong data-start=\"1272\" data-end=\"1290\"\u003eBuilt to Last:\u003c\/strong\u003e High-quality aluminium and glass construction with a \u003cstrong data-start=\"1344\" data-end=\"1363\"\u003e5-year warranty\u003c\/strong\u003e for peace of mind.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg alt=\"LUNT LS40FHa H-alpha double-stack Filter for LS40THa\" src=\"https:\/\/www.robtics.nl\/30248-large_default\/lunt-ls40fha-h-alpha-double-stack-filter-for-ls40tha.jpg\"\u003e\u003c\/p\u003e\n\u003cp data-start=\"1384\" data-end=\"1548\"\u003eIf you already own the \u003cstrong data-start=\"1407\" data-end=\"1423\"\u003eLUNT LS40THa\u003c\/strong\u003e, this double-stack filter is the most effective way to upgrade your solar observations and get the most from your telescope.\u003c\/p\u003e","brand":"Lunt","offers":[{"title":"Default Title","offer_id":54985718268280,"sku":"0551141","price":998.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/LUNTLS40FHaH-alphaDouble-StackFilterforLS40THaImage_c1da9a87-7c83-4d43-b726-a81539191018.webp?v=1742561145","url":"https:\/\/www.darkclearskies.co.uk\/products\/lunt-ls40fha-h-alpha-double-stack-filter-for-ls40tha","provider":"Dark Clear Skies ","version":"1.0","type":"link"}