{"product_id":"svbony-sv503-70mm-f-6-78-quadruplet-ed-f9359e","title":"SVBONY SV503 70mm f\/6.78 Quadruplet  ED (F9359E)","description":"\u003ch1\u003eSVBONY SV503 70mm f\/6.78 Quadruplet  ED \u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in Flat-Field Correction\u003c\/strong\u003e: Designed for effortless astrophotography, ensuring high-quality images;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eED Extra-Low Dispersion Glass Lens\u003c\/strong\u003e: Features a 4-element ED lens with FPL51 and lanthanum special glass to reduce chromatic dispersion, enhancing color fidelity and image clarity;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Speed Focusing\u003c\/strong\u003e: 1:10 gear ratio for precise focusing, ideal for achieving sharp focus in challenging astrophotography conditions;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExcellent Light-Gathering Ability\u003c\/strong\u003e: With a focal ratio of f\/6.78, it enables crisp, high-magnification observations;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRetractable Lens Hood\u003c\/strong\u003e: The retractable hood blocks stray light for better contrast and is easy to store;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1.25\" and 2\" interfaces\u003c\/strong\u003e: Can switch eyepiece types freely, no need to replace the telescope body.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNote: Built-in Flat-Field design does not require an additional Field Flattener.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: MiSans-Regular;\"\u003eThe SVBONY SV503 70 ED telescope features a 4-element built-in field flattener that eliminates field curvature, providing a flat, wide view free from edge blur or distortion, allowing observers to explore the universe with clarity.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: MiSans-Regular;\"\u003eWith f\/6.78 and a generous 70mm aperture. SVBONY SV503 refractor telescope delivers bright, sharp images of distant galaxies,nebulae and star clusters. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: MiSans-Regular;\"\u003eSV503 telescope featuring ED glass, this advanced material not only reduces color dispersion but also enhances light transmission.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: MiSans-Regular;\"\u003eCoarse adjustment knob, enables rapid movement of the optical system to achieve a rough focus. Fine adjustment knob is used for minute adjustments to obtain optimal image clarity, enhancing your viewing experience.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: MiSans-Regular;\"\u003eCNC machining ensures a perfect fit for components such as threads and bayonets, prevents optical axis deviation, and enhances wear resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px; font-family: MiSans-Regular;\"\u003eRetractable lens hood can blocks stray light, easy to store, and adjustable in length to meet your needs.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSV503 70 ED OTA + SV705C Planetary Camera + SV165 Guide Scope + SV905C Guide Camera, suitable for astronomical photography.\u003c\/p\u003e\n\u003cp\u003eSV503 70 ED OTA + SV215 Zoom Eyepiece + SV188P Diagonal + SV182 Finder Scope + SV224 Universal Dovetail + SV211 Handle Bar,suitable for visual observation.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable cellspacing=\"0\" border=\"0\"\u003e\n\u003ccolgroup width=\"85\"\u003e\u003c\/colgroup\u003e \u003ccolgroup width=\"222\"\u003e\u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd height=\"18\" align=\"left\" valign=\"middle\"\u003e\u003cb\u003e\u003cspan style=\"font-family: Liberation Serif;\"\u003eBrand\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd align=\"center\" valign=\"middle\"\u003e\u003cspan style=\"font-family: Liberation Serif;\"\u003e SVBONY\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"18\" align=\"left\" valign=\"middle\"\u003e\u003cb\u003e\u003cspan style=\"font-family: Liberation Serif;\"\u003eModel\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd align=\"center\" valign=\"middle\"\u003e\u003cspan style=\"font-family: Liberation Serif;\"\u003e SV503\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"18\" align=\"left\" valign=\"middle\"\u003e\u003cb\u003e\u003cspan style=\"font-family: Liberation Serif;\"\u003eAperture\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd align=\"center\" valign=\"middle\"\u003e\u003cspan style=\"font-family: Liberation Serif;\"\u003e 70mm\/2.8\"\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"18\" align=\"left\" valign=\"middle\"\u003e\u003cb\u003e\u003cspan style=\"font-family: Liberation Serif;\"\u003eFocal length\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd align=\"center\" valign=\"middle\"\u003e\u003cspan style=\"font-family: Liberation Serif;\"\u003e 474 mm\/18.7\"\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"18\" align=\"left\" valign=\"middle\"\u003e\u003cb\u003e\u003cspan style=\"font-family: Liberation Serif;\"\u003eFocal ratio\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd align=\"center\" valign=\"middle\"\u003e\u003cspan style=\"font-family: Liberation Serif;\"\u003e f\/6.78\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"33\" align=\"left\" valign=\"middle\"\u003e\u003cb\u003e\u003cspan style=\"font-family: Liberation Serif;\"\u003eObjective Type\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd align=\"center\" valign=\"middle\"\u003e\u003cspan style=\"font-family: Liberation Serif;\"\u003e 4-Element ED lens with FPL51 and lanthanum special glass\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"18\" align=\"left\" valign=\"middle\"\u003e\u003cb\u003e\u003cspan style=\"font-family: Liberation Serif;\"\u003eCorrector\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd align=\"center\" valign=\"middle\"\u003e\u003cspan style=\"font-family: Liberation Serif;\"\u003e 2-element corrector installed in the tube\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"33\" align=\"left\" valign=\"middle\"\u003e\u003cb\u003e\u003cspan style=\"font-family: Liberation Serif;\"\u003eFocuser\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd align=\"center\" valign=\"middle\"\u003e\u003cspan style=\"font-family: Liberation Serif;\"\u003e 2.5\" RAP focuser with 2\" reduction adapter and M54x0.75 female thread\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"33\" align=\"left\" valign=\"middle\"\u003e\u003cb\u003e\u003cspan style=\"font-family: Liberation Serif;\"\u003eCorrected and Flatfield\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd align=\"center\" valign=\"middle\"\u003e\u003cspan style=\"font-family: Liberation Serif;\"\u003e 32 mm\/1.3\" with 100% correction\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"64\" align=\"left\" valign=\"middle\"\u003e\u003cb\u003e\u003cspan style=\"font-family: Liberation Serif;\"\u003eWorking distance from the 2\" receptacle\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd align=\"center\" valign=\"middle\"\u003e\u003cspan style=\"font-family: Liberation Serif;\"\u003e 127.5 mm\/5\"\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"33\" align=\"left\" valign=\"middle\"\u003e\u003cb\u003e\u003cspan style=\"font-family: Liberation Serif;\"\u003eTube length min.\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd align=\"center\" valign=\"middle\"\u003e\u003cspan style=\"font-family: Liberation Serif;\"\u003e 365mm\/14.4\"\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"33\" align=\"left\" valign=\"middle\"\u003e\u003cb\u003e\u003cspan style=\"font-family: Liberation Serif;\"\u003eTube diameter\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd align=\"center\" valign=\"middle\"\u003e\u003cspan style=\"font-family: Liberation Serif;\"\u003e 82mm\/3.2\"\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"33\" align=\"left\" valign=\"middle\"\u003e\u003cb\u003e\u003cspan style=\"font-family: Liberation Serif;\"\u003eDew shield diameter\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd align=\"center\" valign=\"middle\"\u003e\u003cspan style=\"font-family: Liberation Serif;\"\u003e 93 mm\/3.7\"\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"49\" align=\"left\" valign=\"middle\"\u003e\u003cb\u003e\u003cspan style=\"font-family: Liberation Serif;\"\u003eTube weight incl. accessories\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd align=\"center\" valign=\"middle\"\u003e\u003cspan style=\"font-family: Liberation Serif;\"\u003e 2685g\/5.9lb\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 16px; font-family: MiSans-Regular;\"\u003eSV503 70 f\/6.78 OTA*1\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 16px; font-family: MiSans-Regular;\"\u003e2\"-1.25\" Adapter*1\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 16px; font-family: MiSans-Regular;\"\u003eLens Cover*1\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 16px; font-family: MiSans-Regular;\"\u003ePair Telescope Tube Ring*1\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 16px; font-family: MiSans-Regular;\"\u003eDovetail Plate*1\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 16px; font-family: MiSans-Regular;\"\u003e1.25\" Dust Cover*1\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWarranty \u0026amp; Manual\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003e\u003ca href=\"https:\/\/istronomyplus.com\/pages\/svbony-warranty\" target=\"_blank\"\u003eSvbony 1-Year Warranty\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Svbony","offers":[{"title":"Default Title","offer_id":46842165100773,"sku":"SV-F9359E","price":499.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/svbony-sv503-70-ota-upgrade.jpg?v=1777043709","url":"https:\/\/istronomyplus.com\/products\/svbony-sv503-70mm-f-6-78-quadruplet-ed-f9359e","provider":"Astronomy Plus – Telescopes \u0026 Astrophotography Canada","version":"1.0","type":"link"}