{"product_id":"takahashi-fc-100df-fluorite-doublet-apo-f-7-4-used-tfk10110-u","title":"Takahashi FC-100DF Fluorite Doublet APO f\/7.4 - USED (TFK10110-U)","description":"\u003ch1\u003eTakahashi FC-100DF Fluorite Doublet APO f\/7.4 - USED \u003c\/h1\u003e\n\u003ch2\u003e\u003cspan style=\"color: rgb(246, 9, 9);\"\u003eBought less than a year old. In perfect condition, as new.\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(246, 9, 9);\"\u003eComes with : \u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(246, 9, 9);\"\u003eTakahashi Micro Focuser\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(246, 9, 9);\"\u003eMounting rings\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(246, 9, 9);\"\u003eSky Watcher Finder and Takahahi Bracket\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(246, 9, 9);\"\u003eSVBONY Handle Bar\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan style=\"color: rgb(246, 9, 9);\"\u003eTakahashi extensions\u003c\/span\u003e\u003c\/strong\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(246, 9, 9);\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(246, 9, 9);\"\u003eOriginal shipping box\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Takahashi FC-100DF apochromatic refractor is designed around a fluorite doublet at F\/7.4. It is equipped with a 50.8 mm rack-and-pinion focuser, larger than that of the FC-100DC, allowing the mounting of heavier cameras. Its use remains very versatile and even a small mount will make it possible to exploit its full potential.\u003c\/p\u003e\n\u003cp\u003eIf you want to make astrophotography at the native focal length of the refractor, a field corrector is available. It can also be equipped with a focal reducer : either the 76D-RD model normally intended for the small focuser, or the FC-35RD model, specific to the FC-100DF and its 50.8 mm focuser. The use of the latter is recommended for cameras or APNs equipped with APS-C or higher sensors.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003eCHARACTERISTIC\u003c\/td\u003e\n\u003ctd\u003eTAKAHASHI FC-100DF REFRACTOR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eObjective\u003c\/td\u003e\n\u003ctd\u003eFluorite doublet apochromat\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLens cell\u003c\/td\u003e\n\u003ctd\u003eAir-spaced doublet. Fluorite in the back\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoatings\u003c\/td\u003e\n\u003ctd\u003eHard multicoatings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiameter\u003c\/td\u003e\n\u003ctd\u003e100 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" class=\"table-subheader\"\u003eAT PRIME FOCUS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal length\u003c\/td\u003e\n\u003ctd\u003e740 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal ratio\u003c\/td\u003e\n\u003ctd\u003eF\/7.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMetal Back Distance\u003c\/td\u003e\n\u003ctd\u003e223 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" class=\"table-subheader\"\u003eWITH 76D-FL FIELD CORRECTOR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal length\u003c\/td\u003e\n\u003ctd\u003e770 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal ratio\u003c\/td\u003e\n\u003ctd\u003eF\/7.7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImage circle diameter\u003c\/td\u003e\n\u003ctd\u003e35 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMetal Back Distance\u003c\/td\u003e\n\u003ctd\u003e56.2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" class=\"table-subheader\"\u003eWITH FC\/FS MFL1.04X FIELD CORRECTOR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal length\u003c\/td\u003e\n\u003ctd\u003e757 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal ratio\u003c\/td\u003e\n\u003ctd\u003eF\/7.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImage circle diameter\u003c\/td\u003e\n\u003ctd\u003e44 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMetal Back Distance\u003c\/td\u003e\n\u003ctd\u003e71.2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" class=\"table-subheader\"\u003eWITH 76D RD FOCAL REDUCER\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal length\u003c\/td\u003e\n\u003ctd\u003e540 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal ratio\u003c\/td\u003e\n\u003ctd\u003eF\/5.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImage circle diameter\u003c\/td\u003e\n\u003ctd\u003e30 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackfocus\u003c\/td\u003e\n\u003ctd\u003e56.2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" class=\"table-subheader\"\u003eWITH FC-35RD FOCAL REDUCER\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal length\u003c\/td\u003e\n\u003ctd\u003e480 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal ratio\u003c\/td\u003e\n\u003ctd\u003eF\/4.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImage circle diameter\u003c\/td\u003e\n\u003ctd\u003e44 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMetal Back Distance\u003c\/td\u003e\n\u003ctd\u003e74.1 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" class=\"table-subheader\"\u003eWITH EX-Q1.6X FOCAL EXTENDER\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal length\u003c\/td\u003e\n\u003ctd\u003e1185 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal ratio\u003c\/td\u003e\n\u003ctd\u003eF\/11.9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMetal Bck Distance\u003c\/td\u003e\n\u003ctd\u003e157 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" class=\"table-subheader\"\u003eWITH C2X FOCAL EXTENDER\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal length\u003c\/td\u003e\n\u003ctd\u003e1480 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal ratio\u003c\/td\u003e\n\u003ctd\u003eF\/D 14,8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMetal Back Distance\u003c\/td\u003e\n\u003ctd\u003e73 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch4\u003eTakahashi FC-100DF refractor\u003c\/h4\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003eCHARACTERISTIC\u003c\/td\u003e\n\u003ctd\u003eTAKAHASHI FC-100DF REFRACTOR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eLength of the optical tube\u003c\/td\u003e\n\u003ctd\u003e785 mm (with fixed dew-shield)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiameter of the optical tube\u003c\/td\u003e\n\u003ctd\u003e95 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiameter of the dew-shield\u003c\/td\u003e\n\u003ctd\u003e124 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e3.6 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser\u003c\/td\u003e\n\u003ctd\u003eRack-and-pinion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Tube Assembly - USED\u003c\/li\u003e\n\u003cli\u003eF50.8 AD Ring TKP19001\u003c\/li\u003e\n\u003cli\u003e50.8 Sleeve TKP00113\u003c\/li\u003e\n\u003cli\u003eCoupling (s) TKP00103\u003c\/li\u003e\n\u003cli\u003eEyepiece adapter (31.7) TKP00101\u003c\/li\u003e\n\u003cli\u003eEyepiece adapter (50.8) TKP27110\u003c\/li\u003e\n\u003cli\u003eExtension Tube L (50.8) TKP31112\u003c\/li\u003e\n\u003cli\u003eTakahashi Micro Focuser\u003c\/li\u003e\n\u003cli\u003eMounting rings\u003c\/li\u003e\n\u003cli\u003eSky Watcher Finder and Takahahi Bracket\u003c\/li\u003e\n\u003cli\u003eSVBONY Handle Bar\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch3\u003eManual \u0026amp; Warranty\u003c\/h3\u003e\n\u003cp\u003e\u003cbr\u003e\u003ca href=\"https:\/\/takahashi-europe.com\/assets\/uploads\/SYSTEM-CHARTS\/EN\/FC-100DF_systemchart_2018_EN.pdf\"\u003eSystem-chart of Takahashi FC-100DF telescope\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/takahashi-europe.com\/assets\/uploads\/SYSTEM-CHARTS\/EN\/FC-100DF_reducer_FC35_systemchart_EN.pdf\"\u003eSystem-chart of Takahashi FC-100DF refractor with FC-35RD\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/takahashi-europe.com\/assets\/uploads\/SYSTEM-CHARTS\/EN\/FC-100DF_EX-Q_systemchart_EN.pdf\"\u003eSystem-chart of Takahashi FC-100DF refractor with Extender Q 1.6X\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/takahashi-europe.com\/assets\/uploads\/SYSTEM-CHARTS\/EN\/FC-100DF_EX-C2X_systemchart_EN.pdf\"\u003e\u003cspan\u003eSystem-chart of Takahashi FC-100DF refractor with Extender C2X\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Takahashi","offers":[{"title":"Default Title","offer_id":48976885547237,"sku":"TAK-TFK10110-BOND","price":2499.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/takahashi-fc-100df-fluorite-doublet-apo-f7-4-tfk10110-astronomy-plus-1_7d07016f-3297-44bf-bda1-7af02938e695.jpg?v=1778002765","url":"https:\/\/istronomyplus.com\/products\/takahashi-fc-100df-fluorite-doublet-apo-f-7-4-used-tfk10110-u","provider":"Astronomy Plus – Telescopes \u0026 Astrophotography Canada","version":"1.0","type":"link"}