{"product_id":"lunt-60mm-double-stack-compatible-with-ls60mt-and-exisiting-ls60thapt","title":"Lunt Double Stack Filters","description":"\u003ch2 data-start=\"0\" data-end=\"28\" style=\"text-align: center;\"\u003eLunt Double Stack Filters\u003c\/h2\u003e\n\u003cul data-start=\"30\" data-end=\"1120\"\u003e\n\u003cli data-start=\"30\" data-end=\"184\"\u003e\n\u003cp data-start=\"32\" data-end=\"184\"\u003eGive your solar views a serious contrast boost—\u003cstrong data-start=\"79\" data-end=\"128\"\u003edouble stacking tightens bandpass to ~\u0026lt;0.50 Å\u003c\/strong\u003e, so surface texture, filaments, and plages really pop\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"185\" data-end=\"342\"\u003e\n\u003cp data-start=\"187\" data-end=\"342\"\u003eChoose your match: \u003cstrong data-start=\"206\" data-end=\"225\"\u003eLS50FHa (50 mm)\u003c\/strong\u003e for \u003cstrong data-start=\"230\" data-end=\"252\"\u003eLunt ED refractors\u003c\/strong\u003e, or \u003cstrong data-start=\"257\" data-end=\"276\"\u003eLS60FHa (60 mm)\u003c\/strong\u003e for \u003cstrong data-start=\"281\" data-end=\"313\"\u003ecustomer-supplied refractors\u003c\/strong\u003e (adapters may be required)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"343\" data-end=\"468\"\u003e\n\u003cp data-start=\"345\" data-end=\"468\"\u003e\u003cstrong data-start=\"345\" data-end=\"371\"\u003eNo central obstruction\u003c\/strong\u003e designs maintain even illumination across the solar disk for crisp full-disk and close-up work\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"469\" data-end=\"587\"\u003e\n\u003cp data-start=\"471\" data-end=\"587\"\u003e\u003cstrong data-start=\"471\" data-end=\"485\"\u003eTilt-tuned\u003c\/strong\u003e etalons make it easy to dial features on-band, adding that dynamic, 3D-like feel to solar structure\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"588\" data-end=\"720\"\u003e\n\u003cp data-start=\"590\" data-end=\"720\"\u003e\u003cstrong data-start=\"590\" data-end=\"619\"\u003eDay-to-night flexibility:\u003c\/strong\u003e front-mounted filters are \u003cstrong data-start=\"646\" data-end=\"666\"\u003eeasily removable\u003c\/strong\u003e, so your refractor goes right back to nighttime use\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"721\" data-end=\"914\"\u003e\n\u003cp data-start=\"723\" data-end=\"914\"\u003e\u003cstrong data-start=\"723\" data-end=\"740\"\u003eSafety first:\u003c\/strong\u003e a \u003cstrong data-start=\"743\" data-end=\"779\"\u003eLunt Blocking Filter is required\u003c\/strong\u003e for operation—select the size that fits your focal length and workflow (larger BF recommended for imaging to accommodate back focus)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"915\" data-end=\"1023\"\u003e\n\u003cp data-start=\"917\" data-end=\"1023\"\u003eShips protected and travel-ready in a \u003cstrong data-start=\"955\" data-end=\"979\"\u003efitted aluminum case\u003c\/strong\u003e—reliable alignment, session after session\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1024\" data-end=\"1120\"\u003e\n\u003cp data-start=\"1026\" data-end=\"1120\"\u003eBuilt by Lunt Solar Systems for \u003cstrong data-start=\"1058\" data-end=\"1081\"\u003eon-band reliability\u003c\/strong\u003e and a seamless fit with Lunt platforms\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1 data-start=\"1122\" data-end=\"1138\"\u003eSpecifications\u003c\/h1\u003e\n\u003cul data-start=\"1139\" data-end=\"2609\"\u003e\n\u003cli data-start=\"1139\" data-end=\"1609\"\u003e\n\u003cp data-start=\"1141\" data-end=\"1177\"\u003e\u003cstrong data-start=\"1141\" data-end=\"1177\"\u003eLS50FHa (for Lunt ED refractors)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1180\" data-end=\"1609\"\u003e\n\u003cli data-start=\"1180\" data-end=\"1228\"\u003e\n\u003cp data-start=\"1182\" data-end=\"1228\"\u003e\u003cstrong data-start=\"1182\" data-end=\"1195\"\u003eAperture:\u003c\/strong\u003e 50 mm (no central obstruction)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1231\" data-end=\"1300\"\u003e\n\u003cp data-start=\"1233\" data-end=\"1300\"\u003e\u003cstrong data-start=\"1233\" data-end=\"1255\"\u003eBandpass (single):\u003c\/strong\u003e \u0026lt;0.70 Å; \u003cstrong data-start=\"1265\" data-end=\"1289\"\u003eeffective DS system:\u003c\/strong\u003e ~\u0026lt;0.50 Å\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1303\" data-end=\"1342\"\u003e\n\u003cp data-start=\"1305\" data-end=\"1342\"\u003e\u003cstrong data-start=\"1305\" data-end=\"1316\"\u003eTuning:\u003c\/strong\u003e Tilt (integrally tuned)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1345\" data-end=\"1410\"\u003e\n\u003cp data-start=\"1347\" data-end=\"1410\"\u003e\u003cstrong data-start=\"1347\" data-end=\"1371\"\u003eIntended Telescopes:\u003c\/strong\u003e Lunt \u003cstrong data-start=\"1377\" data-end=\"1391\"\u003eED80 (f\/7)\u003c\/strong\u003e, \u003cstrong data-start=\"1393\" data-end=\"1408\"\u003eED102 (f\/7)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1413\" data-end=\"1491\"\u003e\n\u003cp data-start=\"1415\" data-end=\"1491\"\u003e\u003cstrong data-start=\"1415\" data-end=\"1434\"\u003eStorage\/Weight:\u003c\/strong\u003e Aluminum hard case with fitted foam; \u003cstrong data-start=\"1472\" data-end=\"1489\"\u003e~2 lb (~1 kg)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1494\" data-end=\"1609\"\u003e\n\u003cp data-start=\"1496\" data-end=\"1609\"\u003e\u003cstrong data-start=\"1496\" data-end=\"1525\"\u003eBlocking Filter Guidance:\u003c\/strong\u003e \u003cstrong data-start=\"1526\" data-end=\"1534\"\u003eB600\u003c\/strong\u003e visual; \u003cstrong data-start=\"1543\" data-end=\"1558\"\u003eB1200\/B1800\u003c\/strong\u003e visual \u0026amp; imaging (larger BF preferred for imaging)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1611\" data-end=\"2302\"\u003e\n\u003cp data-start=\"1613\" data-end=\"1659\"\u003e\u003cstrong data-start=\"1613\" data-end=\"1659\"\u003eLS60FHa (for customer-supplied refractors)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1662\" data-end=\"2302\"\u003e\n\u003cli data-start=\"1662\" data-end=\"1710\"\u003e\n\u003cp data-start=\"1664\" data-end=\"1710\"\u003e\u003cstrong data-start=\"1664\" data-end=\"1677\"\u003eAperture:\u003c\/strong\u003e 60 mm (no central obstruction)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1713\" data-end=\"1800\"\u003e\n\u003cp data-start=\"1715\" data-end=\"1800\"\u003e\u003cstrong data-start=\"1715\" data-end=\"1737\"\u003eBandpass (single):\u003c\/strong\u003e \u0026lt;0.70 Å; \u003cstrong data-start=\"1747\" data-end=\"1771\"\u003eeffective DS system:\u003c\/strong\u003e ~\u0026lt;0.50 Å (scope-dependent)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1803\" data-end=\"1842\"\u003e\n\u003cp data-start=\"1805\" data-end=\"1842\"\u003e\u003cstrong data-start=\"1805\" data-end=\"1816\"\u003eTuning:\u003c\/strong\u003e Tilt (integrally tuned)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1845\" data-end=\"2135\"\u003e\n\u003cp data-start=\"1847\" data-end=\"1893\"\u003e\u003cstrong data-start=\"1847\" data-end=\"1891\"\u003eFocal Length Guidance (choose BF by FL):\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1898\" data-end=\"2135\"\u003e\n\u003cli data-start=\"1898\" data-end=\"1950\"\u003e\n\u003cp data-start=\"1900\" data-end=\"1950\"\u003e\u003cstrong data-start=\"1900\" data-end=\"1908\"\u003eB600\u003c\/strong\u003e up to \u003cstrong data-start=\"1915\" data-end=\"1925\"\u003e540 mm\u003c\/strong\u003e (1.25\" or 2\" diagonal)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1955\" data-end=\"2009\"\u003e\n\u003cp data-start=\"1957\" data-end=\"2009\"\u003e\u003cstrong data-start=\"1957\" data-end=\"1966\"\u003eB1200\u003c\/strong\u003e up to \u003cstrong data-start=\"1973\" data-end=\"1984\"\u003e1080 mm\u003c\/strong\u003e (1.25\" or 2\" diagonal)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2014\" data-end=\"2068\"\u003e\n\u003cp data-start=\"2016\" data-end=\"2068\"\u003e\u003cstrong data-start=\"2016\" data-end=\"2025\"\u003eB1800\u003c\/strong\u003e up to \u003cstrong data-start=\"2032\" data-end=\"2043\"\u003e1620 mm\u003c\/strong\u003e (1.25\" or 2\" diagonal)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2073\" data-end=\"2135\"\u003e\n\u003cp data-start=\"2075\" data-end=\"2135\"\u003e\u003cstrong data-start=\"2075\" data-end=\"2084\"\u003eB3400\u003c\/strong\u003e up to \u003cstrong data-start=\"2091\" data-end=\"2102\"\u003e3060 mm\u003c\/strong\u003e (\u003cstrong data-start=\"2104\" data-end=\"2127\"\u003e2\" straight-through\u003c\/strong\u003e tube)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2138\" data-end=\"2218\"\u003e\n\u003cp data-start=\"2140\" data-end=\"2218\"\u003e\u003cstrong data-start=\"2140\" data-end=\"2159\"\u003eStorage\/Weight:\u003c\/strong\u003e Aluminum hard case with fitted foam; \u003cstrong data-start=\"2197\" data-end=\"2216\"\u003e~3 lb (~1.5 kg)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2221\" data-end=\"2302\"\u003e\n\u003cp data-start=\"2223\" data-end=\"2302\"\u003e\u003cstrong data-start=\"2223\" data-end=\"2232\"\u003eNote:\u003c\/strong\u003e Adapters may be required to retrofit your refractor (sold separately)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2304\" data-end=\"2609\"\u003e\n\u003cp data-start=\"2306\" data-end=\"2317\"\u003e\u003cstrong data-start=\"2306\" data-end=\"2317\"\u003eGeneral\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"2320\" data-end=\"2609\"\u003e\n\u003cli data-start=\"2320\" data-end=\"2417\"\u003e\n\u003cp data-start=\"2322\" data-end=\"2417\"\u003e\u003cstrong data-start=\"2322\" data-end=\"2335\"\u003eUse Case:\u003c\/strong\u003e Visual and imaging H-alpha double stacking for higher contrast and finer detail\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2420\" data-end=\"2522\"\u003e\n\u003cp data-start=\"2422\" data-end=\"2522\"\u003e\u003cstrong data-start=\"2422\" data-end=\"2436\"\u003eOperation:\u003c\/strong\u003e Front-mounted, removable filters for daytime use; easy swap back to night observing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2525\" data-end=\"2609\"\u003e\n\u003cp data-start=\"2527\" data-end=\"2609\"\u003e\u003cstrong data-start=\"2527\" data-end=\"2543\"\u003eRequirement:\u003c\/strong\u003e Always use with a \u003cstrong data-start=\"2562\" data-end=\"2586\"\u003eLunt Blocking Filter\u003c\/strong\u003e matched to your system\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1 data-start=\"2611\" data-end=\"2631\"\u003eWhat’s in the Box?\u003c\/h1\u003e\n\u003cul data-start=\"2632\" data-end=\"2804\"\u003e\n\u003cli data-start=\"2632\" data-end=\"2708\"\u003e\n\u003cp data-start=\"2634\" data-end=\"2708\"\u003e\u003cstrong data-start=\"2634\" data-end=\"2662\"\u003eLunt Double Stack Filter\u003c\/strong\u003e of your choice (\u003cstrong data-start=\"2679\" data-end=\"2690\"\u003eLS50FHa\u003c\/strong\u003e or \u003cstrong data-start=\"2694\" data-end=\"2705\"\u003eLS60FHa\u003c\/strong\u003e)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2709\" data-end=\"2761\"\u003e\n\u003cp data-start=\"2711\" data-end=\"2761\"\u003e\u003cstrong data-start=\"2711\" data-end=\"2742\"\u003eAluminum finished hard case\u003c\/strong\u003e with fitted foam\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2762\" data-end=\"2804\"\u003e\n\u003cp data-start=\"2764\" data-end=\"2804\"\u003eBasic documentation and usage guidance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2806\" data-end=\"3003\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cem data-start=\"2806\" data-end=\"3003\" data-is-last-node=\"\"\u003eBlocking filter and any required adapter plates are sold separately. Select the appropriate Lunt Blocking Filter (B600\/B1200\/B1800\/B3400 as applicable) for safe operation and full-field coverage.\u003c\/em\u003e\u003c\/p\u003e","brand":"Lunt Solar Systems","offers":[{"title":"compatible with LS60MT and exisiting LS60THaPT","offer_id":50998074671424,"sku":"LS60FHa","price":1495.0,"currency_code":"USD","in_stock":true},{"title":"50mm compatible with LS60MT and existing LS60THa and LS60THaPT","offer_id":50998074704192,"sku":"LS50FHa","price":1199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0717\/9904\/6464\/files\/Double-Stack-Filter-50F-Vertical_500b4096-e602-4964-853a-20ccb479f798.png?v=1756300810","url":"https:\/\/astroworldtelescopes.com\/products\/lunt-60mm-double-stack-compatible-with-ls60mt-and-exisiting-ls60thapt","provider":"Astroworld Telescopes","version":"1.0","type":"link"}