{"product_id":"takahashi-epsilon-ε-180ed-astrograph-f-2-8-tek18010","title":"Takahashi Epsilon ε-180ED Astrograph f\/2.8 (TEK18010)","description":"\u003ch1\u003eTakahashi Epsilon ε-180ED Astrograph f\/2.8\u003c\/h1\u003e\n\u003cp\u003eThe Epsilon series of astrographs are specifically designed for exceptional astrophotography.  Takahashi’s proprietary optical design features a hyperbolic, concave primary mirror with a 2 element ED corrector lens to eliminate spherical aberration and coma.  Compared to the conventional Schmidt camera design, the chromatic aberration is reduced by half, even out to large viewing angles.\u003c\/p\u003e\n\u003cp\u003eThe Takahashi Epsilon ε-180ED Astrograph was introduced by Takahashi as the first of the new Epsilon flat–field hyperbolic astrographs since the 1980’s. The ε-180 was designed to be a very fast f\/2.8 imaging system.\u003c\/p\u003e\n\u003cp\u003eThis fast field photo visual astrograph is perfect for digital SLR’s and CCD cameras.  The f\/2.8 speed will enable the imager to record faint nebulosity not visible in slower instruments.  In addition, the appreciably shorter exposure times reduce tracking error and will produce pin point stars. The ε-180 will produce 10 micron stars across the entire 44 mm diagmer flat 5 degree field.\u003c\/p\u003e\n\u003cp\u003eThe focuser has been improved to allow more precise focusing. Each has a metal insert with a special non-cold flow material to allow for correct focus.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAperture\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e180mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFocal Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e500mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFocal Ratio\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ef\/2.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOptical Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eModified Hyperbolic Newtonian\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eResolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTBD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLimiting Magnitude\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTBD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLight Gathering Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTBD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTube Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e232mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTube Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e570mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTube Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10.7kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMetal Back Distance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e56.2mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eImage Circle\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e44mm\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\u003cp\u003e\u003cspan\u003eEpsilon ε-180ED OTA (mount, tripod, tube holder and finder sold separately)\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eManual \u0026amp; Warranty\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/takahashiamerica.com\/pages\/warranty-service?_pos=1\u0026amp;_psq=warranty\u0026amp;_ss=e\u0026amp;_v=1.0\"\u003eTakahashi 5-Years Warranty\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/Takahashi-Telescope-Specifications.pdf?v=1669843819\" style=\"font-size: 0.875rem;\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/Takahashi-Telescope-Specifications.pdf?v=1669843819\" style=\"font-size: 0.875rem;\" target=\"_blank\"\u003eTakahashi Telescope Specifications\u003c\/a\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/Takahashi-Adapter-Specifications.pdf?v=1669843817\" target=\"_blank\"\u003eTakahashi Adapter Specifications\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eSystem Charts\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/Takahashi-Epsilon-_-180ED-System-Chart.pdf?v=1669845568\" target=\"_blank\"\u003eTakahashi Epsilon ε-180ED System Chart\u003c\/a\u003e\u003c\/p\u003e","brand":"Takahashi","offers":[{"title":"Default Title","offer_id":43125800796389,"sku":"TAK-TEK18010","price":6538.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/takahashi-epsilon-e-180ed-astrograph-f2-8-tek18010-astronomy-plus-1.jpg?v=1690486286","url":"https:\/\/istronomyplus.com\/products\/takahashi-epsilon-%ce%b5-180ed-astrograph-f-2-8-tek18010","provider":"Astronomy Plus – Telescopes \u0026 Astrophotography Canada","version":"1.0","type":"link"}