{"product_id":"askar-fma180-pro-rifrattore-apo-astrofotografia","title":"Askar FMA180 PRO Sextuplet APO Refractor","description":"\u003ch2\u003eAskar FMA180 PRO – The Sextuplet APO Refractor for Astrophotography\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eAskar FMA180 PRO\u003c\/strong\u003e is a \u003cstrong\u003esextuplet APO refractor\u003c\/strong\u003e featuring dual ED glass elements, designed to deliver maximum performance in \u003cstrong\u003ewide-field astrophotography\u003c\/strong\u003e and astronomical landscape photography. The 6-element optical system guarantees excellent chromatic correction and pinpoint stars to the very edge of the frame, even on full-frame sensors.\u003c\/p\u003e\n\n\u003ch2\u003eSextuplet Optical System with Integrated Full-Frame Corrector\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003ePRO\u003c\/strong\u003e version introduces a completely redesigned optical system: 6 lenses with dual ED glass deliver superior correction of chromatic aberration and field curvature compared to the previous series. With the \u003cstrong\u003eincluded full-frame F\/4.5 corrector\u003c\/strong\u003e, the FMA180 PRO operates at a \u003cstrong\u003efocal length of 180mm\u003c\/strong\u003e with an \u003cstrong\u003eaperture of 40mm\u003c\/strong\u003e, becoming a compact, high-performance APO telephoto lens with an extended field of view.\u003c\/p\u003e\n\n\u003cp\u003eThe \u003cstrong\u003einternal tube blackening\u003c\/strong\u003e and \u003cstrong\u003emulti-layer anti-reflection coatings\u003c\/strong\u003e eliminate stray light and ghosting, delivering high-contrast, colour-accurate images even under difficult lighting conditions or in light-polluted environments.\u003c\/p\u003e\n\n\u003ch2\u003ePRO Features for Advanced Astrophotography\u003c\/h2\u003e\n\n\u003cp\u003eThe new \u003cstrong\u003erear rotator\u003c\/strong\u003e allows sensor rotation without losing focus or affecting collimation — essential for correctly framing elongated objects such as galaxies and nebulae. The \u003cstrong\u003erear 2″ filter thread\u003c\/strong\u003e enables direct use of narrowband and broadband filters without additional adapters.\u003c\/p\u003e\n\n\u003cp\u003eA \u003cstrong\u003eworking distance (backfocus) of 55mm\u003c\/strong\u003e with an \u003cstrong\u003eM48 connection\u003c\/strong\u003e ensures full compatibility with all major astronomical cameras: \u003cstrong\u003eDSLR, dedicated CMOS, CCD, and mirrorless\u003c\/strong\u003e — with or without T2 adapters.\u003c\/p\u003e\n\n\u003ch2\u003eDual Use: Astrophotography and Landscape Telephoto\u003c\/h2\u003e\n\n\u003cp\u003eThanks to its compact dimensions and light weight, the \u003cstrong\u003eAskar FMA180 PRO\u003c\/strong\u003e is a true multi-purpose instrument: an excellent \u003cstrong\u003e180mm APO telephoto lens\u003c\/strong\u003e for terrestrial and landscape photography, and a powerful tool for \u003cstrong\u003ewide-field deep-sky astrophotography\u003c\/strong\u003e. One instrument for two completely different needs.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eFeature\u003c\/th\u003e\n      \u003cth\u003eSpecification\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eOptical Design\u003c\/td\u003e\n      \u003ctd\u003eSextuplet APO (6 elements) with dual ED glass\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eAperture\u003c\/td\u003e\n      \u003ctd\u003e40 mm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eNative Focal Length\u003c\/td\u003e\n      \u003ctd\u003e220 mm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eFocal Length with Corrector\u003c\/td\u003e\n      \u003ctd\u003e180 mm (F\/4.5)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eBackfocus\u003c\/td\u003e\n      \u003ctd\u003e55 mm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eConnection\u003c\/td\u003e\n      \u003ctd\u003eM48\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eFilters\u003c\/td\u003e\n      \u003ctd\u003e2″ (rear filter thread)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eCamera Compatibility\u003c\/td\u003e\n      \u003ctd\u003eDSLR, CMOS, CCD, Mirrorless\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Askar Sharpstar","offers":[{"title":"Default Title","offer_id":51261034496331,"sku":"SZFMA180PRO","price":579.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0886\/1981\/1147\/files\/askar-fma180-pro-rifrattore-apo-tripletto-astrofotografia-obiettivo-telefoto.png?v=1744225004","url":"https:\/\/adriasky.it\/en\/products\/askar-fma180-pro-rifrattore-apo-astrofotografia","provider":"Adriasky","version":"1.0","type":"link"}