{"product_id":"antlia-filtro-h-alpha-3-5nm-125","title":"Antlia Filtro H-Alpha 3,5nm 1,25\"","description":"\u003ch2\u003eAntlia Filtro H-Alpha 3,5nm 1,25\" – Banda Ultra-Stretta per Astrofotografia\u003c\/h2\u003e\n\u003cp\u003eIl \u003cstrong\u003efiltro Antlia H-Alpha 3,5nm\u003c\/strong\u003e è un \u003cstrong\u003efiltro a banda ultra-stretta\u003c\/strong\u003e centrato sulla riga di emissione dell'idrogeno ionizzato a \u003cstrong\u003e656,3nm\u003c\/strong\u003e, con larghezza di banda di soli \u003cstrong\u003e3,5nm\u003c\/strong\u003e. Garantisce una trasmissione superiore all'\u003cstrong\u003e88%\u003c\/strong\u003e sulla riga H-Alpha e un blocco fuori banda a OD3 (0,1%) da 300 a 1100nm, per il massimo contrasto anche in presenza di forte inquinamento luminoso e durante le notti di luna.\u003c\/p\u003e\n\u003cp\u003eProgettato specificamente per le \u003cstrong\u003ecamere CMOS di nuova generazione\u003c\/strong\u003e e per telescopi veloci fino a \u003cstrong\u003ef\/2.0\u003c\/strong\u003e, il filtro utilizza un substrato Schott monolitico non incollato con lucidatura bilaterale e rivestimento multistrato nano-coating. Il perimetro è annerito manualmente – caratteristica distintiva della qualità costruttiva Antlia – per eliminare completamente la luce parassita ai bordi e gli aloni attorno alle stelle luminose.\u003c\/p\u003e\n\u003cp\u003eComponente H-Alpha del \u003cstrong\u003eset SHO\u003c\/strong\u003e (H-Alpha + OIII + SII), consente imaging ad alto contrasto di nebulose a emissione, resti di supernova e nebulose planetarie, con possibilità di arricchire le immagini RGB con il canale H-Alpha per una maggiore definizione strutturale.\u003c\/p\u003e\n\u003ch3\u003eCaratteristiche principali\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBanda passante \u003cstrong\u003e3,5nm\u003c\/strong\u003e – massimo contrasto e soppressione dell'inquinamento luminoso\u003c\/li\u003e\n\u003cli\u003eTrasmissione \u003cstrong\u003e\u0026gt;88%\u003c\/strong\u003e sulla riga H-Alpha a 656,3nm\u003c\/li\u003e\n\u003cli\u003eBlocco \u003cstrong\u003eOD3 (0,1%)\u003c\/strong\u003e da 300 a 1100nm\u003c\/li\u003e\n\u003cli\u003eSubstrato Schott monolitico non incollato, parafocale ±0,05mm\u003c\/li\u003e\n\u003cli\u003eBordi anneriti manualmente per eliminare luce parassita e aloni\u003c\/li\u003e\n\u003cli\u003eMontatura 1,25\" (M28,5x0,6), compatibile fino a \u003cstrong\u003ef\/2.0\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifiche tecniche\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTipo filtro\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBanda ultra-stretta H-Alpha\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLunghezza d'onda centrale\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e656,3nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBanda passante (FWHM)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3,5nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTrasmissione H-Alpha\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;88%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBlocco fuori banda\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOD3 (0,1%) @ 300–1100nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFormato\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1,25\" (montato, M28,5x0,6)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSubstrato\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSchott, spessore 2mm ±0,05mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eQualità superficie\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e60\/40 (MIL-O-13830)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePlanarità\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1\/4λ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eParallelismo\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e30\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRivestimento\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMultistrato nano-coating, doppia faccia\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRapporto focale\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFino a f\/2.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUso consigliato\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCCD\/CMOS mono, imaging SHO, nebulose a emissione\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Antlia","offers":[{"title":"Default Title","offer_id":58534325715275,"sku":"ANA-HA-1","price":339.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0886\/1981\/1147\/files\/filtro-3nm-h-alpha-pro-508mm-antlia-filters.jpg?v=1789992172","url":"https:\/\/adriasky.it\/products\/antlia-filtro-h-alpha-3-5nm-125","provider":"Adriasky","version":"1.0","type":"link"}