{"product_id":"usato-tecnosky-apo-90-540-fpl55-owl-valigetta","title":"[Used] Tecnosky APO 90\/540 FPL55 OWL Series f\/6 – Triplet with Aluminum Case","description":"\u003cdiv class=\"product-description\" style=\"font-family:Arial,sans-serif;font-size:16px;line-height:1.7;color:#333;\"\u003e\n\n\u003ch1 style=\"font-size:24px;font-weight:bold;\"\u003e[Used] Tecnosky APO 90\/540 FPL55 OWL Series f\/6 – Triplet with Aluminum Case\u003c\/h1\u003e\n\n\u003cdiv style=\"background-color:#fff4e5;padding:15px;margin-top:10px;border-left:4px solid #f0a020;\"\u003e\n\n\u003cstrong\u003eUsed item\u003c\/strong\u003e\u003cbr\u003eUnique used item, at €999 instead of €1343.99 for the new one. The photos are those of the new product.\u003c\/div\u003e\n\n\u003cp style=\"font-size:18px;margin-top:10px;\"\u003eThe \u003cstrong\u003eTecnosky APO 90\/540 OWL Series\u003c\/strong\u003e is an apochromatic refractor with an \u003cstrong\u003eair-spaced triplet objective using Ohara FPL-55 glass\u003c\/strong\u003e: a fast f\/6, excellent for both deep-sky astrophotography and visual observation. Each lens is certified with a \u003cstrong\u003eminimum Strehl of 0.95\u003c\/strong\u003e. This used item is sold \u003cstrong\u003ecomplete with an aluminum carrying case\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:20px;margin-top:30px;\"\u003eKey Features\u003c\/h2\u003e\n\n\u003cul style=\"padding-left:20px;\"\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eFPL-55 air-spaced triplet\u003c\/strong\u003e, FMC coating: color-corrected and pin-point stars.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eIndividual interferometric certificate\u003c\/strong\u003e with a minimum Strehl of 0.95.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003e2.5\" rack-and-pinion focuser\u003c\/strong\u003e, 1:10 micro-focuser, with field rotator.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eReady for astrophotography\u003c\/strong\u003e: becomes an f\/4.8 with a 0.8x reducer.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eCNC rings with Vixen bar and handle\u003c\/strong\u003e for immediate mounting.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003ch2 style=\"font-size:20px;margin-top:30px;\"\u003eMain Technical Specifications\u003c\/h2\u003e\n\n\u003ctable style=\"width:100%;border-collapse:collapse;margin-top:10px;\"\u003e\u003ctbody\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eBrand\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eTecnosky\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eModel\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eAPO 90\/540 FPL55 OWL Series\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eCondition\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eUsed\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eOptical design\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eAir-spaced apochromatic triplet, Ohara FPL-55 glass\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eAperture\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e90 mm\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eFocal length\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e540 mm\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eFocal ratio\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003ef\/6 (f\/4.8 with 0.8x reducer)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eCoating\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eFMC multi-coating\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eStrehl\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eminimum 0.95, interferometric certificate\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eFocuser\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e2.5\" rack-and-pinion, 1:10 micro-focuser, with field rotator\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eEyepiece holder\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e2\" Quick-Lock, 2\" → 1.25\" adapter included\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eRings\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eCNC rings with Vixen bar and handle\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eLength\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e480 mm (520 mm with dew shield extended)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eWeight\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003e4.89 kg\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eIncluded\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ccc;\"\u003eAluminum case, 2\" → 1.25\" adapter\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\u003c\/table\u003e\n\n\u003cdiv style=\"background-color:#f0f8ff;padding:15px;margin-top:30px;border-left:4px solid #007acc;\"\u003e\n\n\u003cstrong\u003eFree shipping\u003c\/strong\u003e\u003cbr\u003eTake advantage of free shipping throughout Italy for orders over €199.99!\u003c\/div\u003e\n\n\n\u003c\/div\u003e","brand":"Tecnosky","offers":[{"title":"Default Title","offer_id":52625924849880,"sku":"USA-TS-90540-OWL","price":999.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/0722\/6072\/files\/4230c206cb54f07ef9a664bc5b4cf00e_1a86cf3e-b693-40cd-9016-ca608a3038be.jpg?v=1791041705","url":"https:\/\/www.giordanoastronomia.it\/en\/products\/usato-tecnosky-apo-90-540-fpl55-owl-valigetta","provider":"Giordano Astronomia","version":"1.0","type":"link"}