{"product_id":"baader-fluorite-flatfield-converter-ffc-all-in-one-t2-kit","title":"BAADER FLUORITE FLATFIELD CONVERTER (FFC) ALL-IN-ONE T2 KIT","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003eImportant! Make sure you read the warranty information at the bottom of the page before purchasing the FFC.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eBaader CaF2 Fluorite Flatfield Converter\u003c\/strong\u003e can be combined with every optical system for photography and visual observations as \u003cstrong\u003ebest and most sophisticated Barlow lens in the world\u003c\/strong\u003e. The FFC is an \u003cstrong\u003eapochromatic\u003c\/strong\u003e, \u003cstrong\u003emulti-coated\u003c\/strong\u003e fluorite lens system with \u003cstrong\u003e10 x higher line resolution\u003c\/strong\u003e than the best projection eyepieces available. It has a massive \u003cstrong\u003e90mm image circle\u003c\/strong\u003e for use with medium format cameras.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0071\/4935\/5059\/files\/2458281_ffc-all-in-one_t2_scope-of-supply_1200.jpg?v=1779249446\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eAll-in-One T2 Kit \u003c\/strong\u003eincludes all adapters to use the FFC with an eyepiece or with planetary cameras with 1.25\" nose piece or T-2-thread.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe 2\" nose piece provides the necessary distance to reach focus on most telescopes even without a star diagonal.\u003c\/li\u003e\n\u003cli\u003eClicklock® eyepiece clamp secures even heavy eyepieces or cameras safely in place.\u003c\/li\u003e\n\u003cli\u003eTwo T-2 quick changers let you easily switch between e.g. camera and eyepiece, and let rotate a camera if all parts are tightly connected. Most of all, you can use them to quickly change between different sets of extension tubes to change the magnification.\u003c\/li\u003e\n\u003cli\u003eT-2 extension tubes are used for setting the magnification factor, which depends on the position of the camera sensor in the camera housing or the field stop of the eyepiece. With additional tubes (available separately), you can use magnifications of 8x or even higher. You can find more information in the manual.\u003c\/li\u003e\n\u003cli\u003eFor a magnification of 3x, you need a distance of approximately 96 mm, and for 4x a distance of 150mm.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eIncludes a hardcase for safe storage and easy transport.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor almost 20 years, Baader's customers had asked again and again: \"Do you have a barlow lens or projection eyepiece – but with a flat field – which can be used with medium format (6x7 Pentax) cameras for imaging sun, moon and planets, but without the typical loss of sharpness?\"\u003c\/p\u003e\n\u003cp\u003eIn 1997, one of the designers of the Zeiss APQ lenses calculated the ultimate projection system with a flat image field. To actually make this design become reality, \u003cstrong\u003eextreme types of glasses\u003c\/strong\u003e were needed. In this case, \u003cstrong\u003etwo multicoated fluorite-lenses\u003c\/strong\u003e - at that time and until today - a nightmare to produce.\u003c\/p\u003e\n\u003cp\u003eThe result was an optical system with an \u003cstrong\u003eunmatched sharpness\u003c\/strong\u003e, with a ten times higher resolution of line pairs than a Zeiss Abbe eyepiece. Even so the days of emulsion film cameras are long gone, this lens system has persisted to be \"the sharpest barlow ever made\".\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0071\/4935\/5059\/files\/fluorite-flatfield-converter-ffc-3x-8x-6a4.png?v=1660283516\" alt=\"\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eBy changing the distance to the camera sensor, you can \u003cstrong\u003evary the magnification between 3x and 8x\u003c\/strong\u003e. The optimum line resolution is set at 4x magnification, where you have the full sharpness over an image circle of 90 mm diameter. On-axis, the sharpness is only limited by your telescope – even at a magnification factor of 15x.\u003c\/p\u003e\n\u003cp\u003eThe FFC can be connected onto every T-2 thread and its 2\" main body likewise fits into every 2\" eyepiece clamp. With the help of our many adapters, you can connect it just about any telescope.\u003c\/p\u003e\n\u003cp\u003eFor best results, you need to keep a certain distance to the original focus point. Please take a look at the PDFs in the \u003ca rel=\"noopener noreferrer\" href=\"https:\/\/www.baader-planetarium.com\/en\/fluorite-flatfield-converter-(ffc)--3x-8x.html\" target=\"_blank\"\u003eDownload section of the Baader website\u003c\/a\u003e for technical information.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eWARNING ABOUT POSSIBLE LOSS OF WARRANTY:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003eThe Baader-FFC contains lenses which are made of real calcium-fluorite crystal. CaF2 has got an impressive refractivity which enables construction of the ultimate lens system that can deliver an incredible amount of sharpness across a very broad spectral range. Unfortunately, such sophisticated optics are \u003cstrong\u003every sensitive to tension caused by temperature differences\u003c\/strong\u003e.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eUnder no circumstances\u003c\/strong\u003e must CaF2 be exposed to \u003cstrong\u003esudden or high changes in temperature\u003c\/strong\u003e. \u003cstrong\u003eDo not use it for photographing the sun\u003c\/strong\u003e – the fast and high changes in temperature could destroy the Fluorite lenses. Defects caused by thermal stress can be detected and measured here in house and are explicitly excluded from the warranty.\u003cbr\u003e\u003cbr\u003eAlso avoid fast changes in temperature during night-observation\/imaging. Never use any Fluorite-lenses (especially not in the front lens of a telescope) at -20°C and then all of a sudden put it it into your living room at +20°C or more! In such a case, the resulting severe temperature stress just as well can be detected, when the lenses end up damaged.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eEvery CaF2 optic needs time to adapt to the surrounding temperature.\u003c\/strong\u003e To do so, for example bring the optical system into the outside in an insulated box and allow it to cool down inside that box \u003cstrong\u003eover the time of an hour\u003c\/strong\u003e. Keep the box closed but outside. After the imaging session put the FFC back into the same box and allow it to gradually warm up inside that box while bringing it inside the house. Keep it there for at least one hour until you open the box and check that any moisture can dry out.\u003c\/p\u003e\n\u003ch5\u003eSpecifications\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable class=\"specificationTable\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left;\"\u003eMagnification factor\u003cbr\u003e\n\u003c\/th\u003e\n\u003ctd\u003e3 - 8 x (2.5 - 15 x possible)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left;\"\u003eOptical design\u003cbr\u003e\n\u003c\/th\u003e\n\u003ctd\u003eBarlow, field flattener\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left;\"\u003eConnection telescope side\u003cbr\u003e\n\u003c\/th\u003e\n\u003ctd\u003e2\" barrel, T2 (M42 x 0.75) female thread\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left;\"\u003eConnection eyepiece side\u003cbr\u003e\n\u003c\/th\u003e\n\u003ctd\u003e\u003cspan\u003eT2 (M42 x 0.75) thread\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left;\"\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e240 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left;\"\u003eSKU\u003c\/th\u003e\n\u003ctd\u003eBA2458200\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg style=\"float: none;\" alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0071\/4935\/5059\/files\/fluorite-flatfield-converter-ffc-3x-8x-295.png?v=1660283827\"\u003e\u003c\/div\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable style=\"width: 55.9146%; margin-left: auto; margin-right: auto;\" class=\"MsoNormalTable\" cellpadding=\"0\" border=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 22px;\"\u003e\n\u003ctd style=\"background: #f1f1f1; padding: 5.5pt; width: 100%; height: 22px;\"\u003e\n\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0071\/4935\/5059\/files\/009-telescope-small.png?v=1580188157\" width=\"27\" height=\"27\"\u003e \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0071\/4935\/5059\/files\/EN_2458281_MANUAL_FFC_All-in-One_T-2-Set.pdf?v=1779324354\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eInstruction manual\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Testar Australia","offers":[{"title":"Default Title","offer_id":48386158166241,"sku":"BA2458281","price":1749.0,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0071\/4935\/5059\/files\/2458281_ffc-all-in-one_t2_main_1000.jpg?v=1779246894","url":"https:\/\/www.testar.com.au\/products\/baader-fluorite-flatfield-converter-ffc-all-in-one-t2-kit","provider":"Testar Australia","version":"1.0","type":"link"}