{"product_id":"lunt-300mm-ha-single-stack-telescope-w-b3400-subject-to-prior-sale","title":"Lunt 300mm Ha Single Stack Telescope w\/ B3400 (subject to prior sale)","description":"\u003ch2 data-start=\"0\" data-end=\"53\"\u003eLunt 300mm H-Alpha Single-Stack Telescope w\/ B3400\u003c\/h2\u003e\n\u003cul data-start=\"55\" data-end=\"1113\"\u003e\n\u003cli data-start=\"55\" data-end=\"138\"\u003e\n\u003cp data-start=\"57\" data-end=\"138\"\u003ePreorder notice: \u003cstrong data-start=\"74\" data-end=\"108\"\u003eships ~300 days after checkout\u003c\/strong\u003e (estimated delivery window)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"139\" data-end=\"245\"\u003e\n\u003cp data-start=\"141\" data-end=\"245\"\u003eMassive \u003cstrong data-start=\"149\" data-end=\"191\"\u003e300 mm f\/7 dedicated H-alpha telescope\u003c\/strong\u003e built for observatory-class resolution and contrast\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"246\" data-end=\"453\"\u003e\n\u003cp data-start=\"248\" data-end=\"453\"\u003e\u003cstrong data-start=\"248\" data-end=\"280\"\u003eInternal unobstructed etalon\u003c\/strong\u003e delivers a \u003cstrong data-start=\"292\" data-end=\"303\"\u003e\u0026lt;0.65 Å\u003c\/strong\u003e bandpass in single-stack; factory \u003cstrong data-start=\"338\" data-end=\"354\"\u003edouble-stack\u003c\/strong\u003e configuration targets \u003cstrong data-start=\"377\" data-end=\"388\"\u003e\u0026lt;0.45 Å\u003c\/strong\u003e for ultra-fine surface structure and high-contrast prominences\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"454\" data-end=\"571\"\u003e\n\u003cp data-start=\"456\" data-end=\"571\"\u003e\u003cstrong data-start=\"456\" data-end=\"490\"\u003eB3400 blocking filter included\u003c\/strong\u003e for generous field coverage and imaging headroom with long focal-length setups\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"572\" data-end=\"738\"\u003e\n\u003cp data-start=\"574\" data-end=\"738\"\u003e\u003cstrong data-start=\"574\" data-end=\"606\"\u003eTrue Doppler pressure tuning\u003c\/strong\u003e with \u003cstrong data-start=\"612\" data-end=\"639\"\u003ePC-USB computer control\u003c\/strong\u003e (single or dual system options) for precise, repeatable on-band performance and remote operation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"739\" data-end=\"847\"\u003e\n\u003cp data-start=\"741\" data-end=\"847\"\u003ePremium \u003cstrong data-start=\"749\" data-end=\"778\"\u003e3.5\" FeatherTouch focuser\u003c\/strong\u003e handles heavy imaging trains with absolute precision and zero slop\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"848\" data-end=\"988\"\u003e\n\u003cp data-start=\"850\" data-end=\"988\"\u003ePurpose-built for serious \u003cstrong data-start=\"876\" data-end=\"918\"\u003eimagers and research-grade visual work\u003c\/strong\u003e—from active regions and filaments to limb dynamics and plage detail\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"989\" data-end=\"1113\"\u003e\n\u003cp data-start=\"991\" data-end=\"1113\"\u003eEngineered for stability: pressure-tuned etalons minimize drift and make quick work of fine feature tuning across the disk\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1 data-start=\"1115\" data-end=\"1131\"\u003eSpecifications\u003c\/h1\u003e\n\u003cul data-start=\"1132\" data-end=\"1625\"\u003e\n\u003cli data-start=\"1132\" data-end=\"1160\"\u003e\n\u003cp data-start=\"1134\" data-end=\"1160\"\u003e\u003cstrong data-start=\"1134\" data-end=\"1147\"\u003eAperture:\u003c\/strong\u003e \u003cstrong data-start=\"1148\" data-end=\"1158\"\u003e300 mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1161\" data-end=\"1189\"\u003e\n\u003cp data-start=\"1163\" data-end=\"1189\"\u003e\u003cstrong data-start=\"1163\" data-end=\"1179\"\u003eFocal Ratio:\u003c\/strong\u003e \u003cstrong data-start=\"1180\" data-end=\"1187\"\u003ef\/7\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1190\" data-end=\"1235\"\u003e\n\u003cp data-start=\"1192\" data-end=\"1235\"\u003e\u003cstrong data-start=\"1192\" data-end=\"1221\"\u003eEtalon Bandpass (single):\u003c\/strong\u003e \u003cstrong data-start=\"1222\" data-end=\"1233\"\u003e\u0026lt;0.65 Å\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1236\" data-end=\"1310\"\u003e\n\u003cp data-start=\"1238\" data-end=\"1310\"\u003e\u003cstrong data-start=\"1238\" data-end=\"1267\"\u003eEtalon Bandpass (double):\u003c\/strong\u003e \u003cstrong data-start=\"1268\" data-end=\"1279\"\u003e\u0026lt;0.45 Å\u003c\/strong\u003e (double-stack configuration)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1311\" data-end=\"1415\"\u003e\n\u003cp data-start=\"1313\" data-end=\"1415\"\u003e\u003cstrong data-start=\"1313\" data-end=\"1331\"\u003eTuning System:\u003c\/strong\u003e \u003cstrong data-start=\"1332\" data-end=\"1364\"\u003eTrue Doppler pressure tuning\u003c\/strong\u003e, \u003cstrong data-start=\"1366\" data-end=\"1396\"\u003ePC-USB computer controlled\u003c\/strong\u003e (single or dual)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1416\" data-end=\"1454\"\u003e\n\u003cp data-start=\"1418\" data-end=\"1454\"\u003e\u003cstrong data-start=\"1418\" data-end=\"1430\"\u003eFocuser:\u003c\/strong\u003e \u003cstrong data-start=\"1431\" data-end=\"1452\"\u003e3.5\" FeatherTouch\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1455\" data-end=\"1500\"\u003e\n\u003cp data-start=\"1457\" data-end=\"1500\"\u003e\u003cstrong data-start=\"1457\" data-end=\"1477\"\u003eBlocking Filter:\u003c\/strong\u003e \u003cstrong data-start=\"1478\" data-end=\"1487\"\u003eB3400\u003c\/strong\u003e (included)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1501\" data-end=\"1559\"\u003e\n\u003cp data-start=\"1503\" data-end=\"1559\"\u003e\u003cstrong data-start=\"1503\" data-end=\"1519\"\u003eSystem Type:\u003c\/strong\u003e \u003cstrong data-start=\"1520\" data-end=\"1557\"\u003eDedicated H-alpha solar telescope\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1560\" data-end=\"1625\"\u003e\n\u003cp data-start=\"1562\" data-end=\"1625\"\u003e\u003cstrong data-start=\"1562\" data-end=\"1585\"\u003ePreorder Lead Time:\u003c\/strong\u003e \u003cstrong data-start=\"1586\" data-end=\"1599\"\u003e~300 days\u003c\/strong\u003e after checkout (estimate)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1 data-start=\"1627\" data-end=\"1647\"\u003eWhat’s in the Box?\u003c\/h1\u003e\n\u003cul data-start=\"1648\" data-end=\"1941\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\n\u003cli data-start=\"1648\" data-end=\"1725\"\u003e\n\u003cp data-start=\"1650\" data-end=\"1725\"\u003e\u003cstrong data-start=\"1650\" data-end=\"1687\"\u003eLunt 300 mm f\/7 H-alpha Telescope\u003c\/strong\u003e (double-stack etalon configuration)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1726\" data-end=\"1755\"\u003e\n\u003cp data-start=\"1728\" data-end=\"1755\"\u003e\u003cstrong data-start=\"1728\" data-end=\"1753\"\u003eB3400 Blocking Filter\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1756\" data-end=\"1805\"\u003e\n\u003cp data-start=\"1758\" data-end=\"1805\"\u003e\u003cstrong data-start=\"1758\" data-end=\"1787\"\u003e3.5\" FeatherTouch Focuser\u003c\/strong\u003e (pre-installed)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1806\" data-end=\"1900\"\u003e\n\u003cp data-start=\"1808\" data-end=\"1900\"\u003e\u003cstrong data-start=\"1808\" data-end=\"1860\"\u003ePC-USB True Doppler Pressure Tuner controller(s)\u003c\/strong\u003e \u003cem data-start=\"1861\" data-end=\"1898\"\u003e(single or dual, per configuration)\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1901\" data-end=\"1941\" data-is-last-node=\"\"\u003e\n\u003cp data-start=\"1903\" data-end=\"1941\" data-is-last-node=\"\"\u003eBasic documentation and setup guidance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lunt Solar Systems","offers":[{"title":"Default Title","offer_id":50952871641408,"sku":"LS300THa \/B3400","price":83999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0717\/9904\/6464\/files\/LS300THa-Solar-Telescope-Lunt.jpg?v=1756158042","url":"https:\/\/astroworldtelescopes.com\/products\/lunt-300mm-ha-single-stack-telescope-w-b3400-subject-to-prior-sale","provider":"Astroworld Telescopes","version":"1.0","type":"link"}