{"product_id":"celestron-luminos-barlow-2-5x-2-pollici-apocromatica","title":"Celestron Luminos 2.5x 2″ Barlow Apochromatic","description":"\u003ch2\u003eCelestron Luminos Barlow 2.5x 2″ – Apochromatic for Visual Observation and Planetary Imaging\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eCelestron Luminos 2.5x Barlow lens\u003c\/strong\u003e in \u003cstrong\u003e2″ (50.8mm)\u003c\/strong\u003e format is a reference apochromatic Barlow for astronomers who pursue \u003cstrong\u003ehigh-magnification visual observation\u003c\/strong\u003e and \u003cstrong\u003eplanetary imaging\u003c\/strong\u003e. The four-element optical system multiplies the effective focal length of the telescope by a factor of \u003cstrong\u003e2.5x\u003c\/strong\u003e, maintaining excellent colour fidelity and a flat field from the centre to the edges.\u003c\/p\u003e\n\n\u003ch2\u003e4-Element Apochromatic Design with Multi-Layer Coatings\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003e4-element apochromatic design\u003c\/strong\u003e with \u003cstrong\u003emulti-layer coatings\u003c\/strong\u003e ensures maximum light transmission and the suppression of parasitic reflections. The result is a high-contrast image with pinpoint stars and sharp planetary detail, free of chromatic halos — essential for planetary imaging sessions with dedicated CMOS cameras or for visual use with premium eyepieces.\u003c\/p\u003e\n\n\u003ch2\u003e2″ Barrel with Included 1.25″ Adapter\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003e2″ (50.8mm) barrel\u003c\/strong\u003e is threaded to accept \u003cstrong\u003e2″ eyepiece filters (M48)\u003c\/strong\u003e and accommodates both \u003cstrong\u003e2″ eyepieces\u003c\/strong\u003e and \u003cstrong\u003e1.25″ eyepieces (31.8mm)\u003c\/strong\u003e via the included reducer. The \u003cstrong\u003ebrass compression rings\u003c\/strong\u003e with knurled locking screws hold the eyepiece securely without scratching the barrel.\u003c\/p\u003e\n\n\u003cp\u003eThe \u003cstrong\u003ehardened anodised aluminium body\u003c\/strong\u003e provides scratch and corrosion resistance, while the \u003cstrong\u003erubber grip ring\u003c\/strong\u003e improves handling even when wearing observation gloves.\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\u003e4-element apochromatic\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMagnification Factor\u003c\/td\u003e\n      \u003ctd\u003e2.5x\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eOptical Coatings\u003c\/td\u003e\n      \u003ctd\u003eMulti-layer\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eBarrel Diameter\u003c\/td\u003e\n      \u003ctd\u003e2″ (50.8mm) with M48 filter thread\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eCompatible Eyepieces\u003c\/td\u003e\n      \u003ctd\u003e2″ and 1.25″ (31.8mm)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eBody Material\u003c\/td\u003e\n      \u003ctd\u003eHardened anodised aluminium\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eEyepiece Lock\u003c\/td\u003e\n      \u003ctd\u003eBrass compression rings\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eAccessory\u003c\/th\u003e\n      \u003cth\u003eDetail\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eAdapter\u003c\/td\u003e\n      \u003ctd\u003e2″ to 1.25″ (31.8mm) reducer\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eCaps\u003c\/td\u003e\n      \u003ctd\u003e2, plastic\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":51262125539659,"sku":"CSCE93436","price":154.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0886\/1981\/1147\/files\/celestron_luminos_lente_barlow_2.5x_2pollici_osservazioni_alti_ingrandimenti_imaging_planetario.jpg?v=1744219220","url":"https:\/\/adriasky.it\/en\/products\/celestron-luminos-barlow-2-5x-2-pollici-apocromatica","provider":"Adriasky","version":"1.0","type":"link"}