{"product_id":"askar-91f-rifrattore-apocromatico-fpl53-91mm-f-5-5-per-astrofotografia-e-osservazione","title":"Askar 91F – Rifrattore apocromatico FPL53 91mm f\/5.5 per astrofotografia e osservazione","description":"\u003cdiv style=\"font-family: Arial, sans-serif; font-size: 16px; line-height: 1.6; color: #333;\" class=\"product-description\"\u003e\n\u003ch1 style=\"font-size: 24px; font-weight: bold;\"\u003eAskar 91F – Rifrattore apocromatico FPL53 per astrofotografia e osservazione\u003c\/h1\u003e\n\u003cp style=\"font-size: 18px; margin-top: 10px;\"\u003eIl \u003cstrong\u003eAskar 91F\u003c\/strong\u003e è un \u003cstrong\u003erifrattore apocromatico a doppietto\u003c\/strong\u003e con vetro premium \u003cstrong\u003eFPL53 ED\u003c\/strong\u003e, progettato per offrire immagini ad altissimo contrasto e correzione cromatica eccellente. Con un \u003cstrong\u003ediametro da 91 mm\u003c\/strong\u003e e una \u003cstrong\u003elunghezza focale di 500 mm (f\/5.5)\u003c\/strong\u003e, è uno strumento versatile ideale sia per l’\u003cstrong\u003eosservazione visuale\u003c\/strong\u003e che per l’\u003cstrong\u003eastrofotografia deep sky\u003c\/strong\u003e. Grazie al focheggiatore da 2.5\" con demoltiplica 1:10 e al tubo compatto e leggero, il 91F è facilmente trasportabile e si adatta a montature portatili, diventando la scelta perfetta per astrofili itineranti e fotografi del cielo profondo.\u003c\/p\u003e\n\u003cul style=\"margin-top: 15px; padding-left: 20px;\"\u003e\n\u003cli\u003eRifrattore apocromatico doppietto FPL53 ED\u003c\/li\u003e\n\u003cli\u003eDiametro 91 mm, focale 500 mm (f\/5.5)\u003c\/li\u003e\n\u003cli\u003eCorrezione cromatica superiore per immagini nitide\u003c\/li\u003e\n\u003cli\u003eIdeale per astrofotografia deep sky e osservazione visuale\u003c\/li\u003e\n\u003cli\u003eCompatto e leggero, perfetto per l’astrofotografia itinerante\u003c\/li\u003e\n\u003cli\u003eFocheggiatore da 2.5\" con demoltiplica 1:10\u003c\/li\u003e\n\u003cli\u003eTubo ottico con anelli CNC e barra a coda di rondine Vixen\u003c\/li\u003e\n\u003cli\u003eParaluce retrattile per trasporto pratico\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"font-size: 20px; margin-top: 30px;\"\u003eSpecifiche tecniche\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 10px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ccc;\"\u003eModello\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ccc;\"\u003eAskar 91F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ccc;\"\u003eTipo ottica\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ccc;\"\u003eRifrattore apocromatico doppietto ED\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ccc;\"\u003eVetro\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ccc;\"\u003eFPL53 ED premium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ccc;\"\u003eDiametro\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ccc;\"\u003e91 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ccc;\"\u003eLunghezza focale\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ccc;\"\u003e500 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ccc;\"\u003eRapporto focale\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ccc;\"\u003ef\/5.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ccc;\"\u003eFocheggiatore\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ccc;\"\u003e2.5\" con demoltiplica 1:10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ccc;\"\u003eParaluce\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ccc;\"\u003eRetrattile\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ccc;\"\u003eAccessori inclusi\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ccc;\"\u003eAnelli CNC, barra Vixen, maniglia\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ccc;\"\u003ePeso\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ccc;\"\u003e~4,5 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ccc;\"\u003eLunghezza tubo\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ccc;\"\u003e~440 mm (paraluce retratto)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"background-color: #f0f8ff; padding: 15px; margin-top: 30px; border-left: 4px solid #007acc;\"\u003e\n\u003cstrong\u003eSpedizione gratuita in Italia\u003c\/strong\u003e\u003cbr\u003eI prodotti con costo superiore a \u003cstrong\u003e199,99\u003c\/strong\u003e\u003cstrong\u003e€\u003c\/strong\u003e prevedono la \u003cstrong\u003espedizione gratuita\u003c\/strong\u003e.\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":51121384259800,"sku":"ASK-91f","price":1099.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/0722\/6072\/files\/askar91fgikordanophoto.png?v=1764084132","url":"https:\/\/www.giordanoastronomia.it\/products\/askar-91f-rifrattore-apocromatico-fpl53-91mm-f-5-5-per-astrofotografia-e-osservazione","provider":"Giordano Astronomia","version":"1.0","type":"link"}