{"product_id":"baader-planetarium-ffc-all-in-one-t-2-set-3-4x-magnification-for-1-25-inch-and-t-2-cameras","title":"Baader Planetarium FFC All-in-One T-2 Set – 3–4x magnification for 1.25\" and T-2 cameras","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eVariable Magnification: 3x to 8x+\u003c\/li\u003e\n\u003cli\u003eOptical Design: 4-Element with 2x CaF2 Fluorite Lenses\u003c\/li\u003e\n\u003cli\u003eImage Circle: 90mm Flat Field at 4x Magnification\u003c\/li\u003e\n\u003cli\u003eSet Magnification Range: 3x to 4x\u003c\/li\u003e\n\u003cli\u003eConnectivity: Baader T-2 System\u003c\/li\u003e\n\u003cli\u003eCompatibility: 1.25\" Eyepieces and T-2 Threaded Cameras\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eFFC All-in-One T-2 Set – 3–4x magnification for 1.25\" and T-2 cameras\u003c\/h2\u003e\n\u003cp\u003eThe Baader Fluorite-Flatfield-Converter (FFC) All-in-One T-2 Set is an uncompromising projection system, built around a 4-element optical core that includes two genuine fluorite (CaF2) crystals to achieve unparalleled sharpness. It delivers a variable magnification from 3x up to 8x, producing a perfectly flat field across a massive 90mm image circle at its optimal 4x setting. This complete set provides all the necessary T-2 adapters to achieve a 3x to 4x magnification range with both 1.25\" eyepieces and T-2 threaded cameras.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eA 4-Element, Dual-Fluorite Design for Ultimate Sharpness\u003c\/h3\u003e\n\u003cp\u003eDeveloped in 1997 with a designer of the legendary Zeiss APQ lenses, the FFC was conceived as the ultimate projection system for high-resolution imaging. Its 4-element, 2-group design incorporates two calcium fluorite (CaF2) lenses—an extreme glass type that enables apochromatic correction across a very broad spectral range. The result is a uniquely transparent and sharp optical system with a claimed line resolution ten times that of a Zeiss Abbe eyepiece.\u003c\/p\u003e\n\u003cp\u003eWhile extremely difficult to produce and coat, the fluorite elements are the key to the FFC's performance. For planetary, lunar, and solar imagers, this design translates to the highest possible contrast and resolution, capturing details limited only by your telescope and atmospheric seeing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eVariable 3x–8x Magnification Across a 90mm Flat Field\u003c\/h3\u003e\n\u003cp\u003eThe FFC's magnification is not fixed; it is determined by the distance between the optics and the focal plane of your eyepiece or camera sensor. This set includes the necessary T-2 extension tubes to achieve approximately 3x magnification at a 96mm distance and 4x at a 150mm distance. With additional T-2 extensions (sold separately), magnification can be pushed to 8x and beyond.\u003c\/p\u003e\n\u003cp\u003eAt its design-optimized 4x magnification, the FFC projects a tack-sharp, completely flat image across an enormous 90mm circle. This fully illuminates even the largest commercially available astronomy camera sensors without compromise, making it a definitive choice for imagers who require perfect edge-to-edge performance on large-format chips.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe All-in-One T-2 System for 1.25\" Eyepieces and Cameras\u003c\/h3\u003e\n\u003cp\u003eThis set integrates the FFC optic into Baader's Astro T-2 System, providing a complete solution for both visual and photographic use. Two included T-2 quick changers allow you to instantly switch between an eyepiece and a camera, or swap between different extension tube configurations for different magnifications. The system is built around these key components:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eT-2 Extension Tubes:\u003c\/strong\u003e These are used to precisely set the optical distance required to achieve your desired magnification between 3x and 4x.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBaader ClickLock Clamp:\u003c\/strong\u003e Securely holds any 1.25\" eyepiece or accessory with a simple twist, preventing slippage or marring of barrels, even with heavy equipment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eT-2 Quick Changers:\u003c\/strong\u003e Allow for rapid changes between imaging and visual setups and provide a point of rotation for camera framing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2\" Nosepiece:\u003c\/strong\u003e Provides the necessary optical path length to reach focus in most telescopes without requiring a star diagonal.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eHandling CaF2: Acclimatizing from +20°C to -20°C\u003c\/h3\u003e\n\u003cp\u003eThe FFC's exceptional optical properties are due to its genuine fluorite lenses, which are sensitive to thermal shock. Sudden, large temperature changes can cause stress within the crystal. You must not take the FFC directly from a warm +20°C house into an icy -20°C winter night without allowing it to acclimate slowly.\u003c\/p\u003e\n\u003cp\u003eTo prevent damage, the FFC's transport case is designed to act as a thermal buffer. When setting up your telescope, leave the FFC in its closed case for up to an hour to allow it to cool down gradually with the ambient air. This simple procedure protects the sensitive optics and ensures a lifetime of uncompromising performance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat makes the Baader FFC different from a standard Barlow lens?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Baader FFC is a more complex optical system designed as a flat-field apochromatic projector, not a simple magnifier. It uses \u003cstrong\u003efour lens elements, including two fluorite (CaF2) crystals\u003c\/strong\u003e, to deliver exceptional sharpness across a very wide, flat 90mm image circle. Standard Barlows typically use two or three non-fluorite lenses and are not corrected for a large, flat field.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I change the magnification with the FFC All-in-One T-2 Set?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou change magnification by altering the distance from the FFC optics to your camera sensor or eyepiece. The \u003cstrong\u003eBaader FFC All-in-One T-2 Set includes a system of T-2 extension tubes\u003c\/strong\u003e to accomplish this. For approximately \u003cstrong\u003e3x magnification, you need a distance of 96mm\u003c\/strong\u003e, and for \u003cstrong\u003e4x, a distance of 150mm\u003c\/strong\u003e. The included T-2 quick changers allow you to easily swap between different extension tube combinations.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Baader FFC All-in-One Set with my large-format camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. The Baader FFC is specifically designed for this purpose. At its optimal 4x magnification, it produces a \u003cstrong\u003eperfectly flat, fully illuminated 90mm image circle\u003c\/strong\u003e. This is large enough to cover the biggest astronomy sensors on the market with no vignetting or loss of edge sharpness, making it an ideal choice for serious imagers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is there a special warning about temperature for the Baader FFC?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Baader FFC's two \u003cstrong\u003efluorite (CaF2) lenses are sensitive to thermal shock\u003c\/strong\u003e. A rapid change in temperature (e.g., from a warm house to a freezing night) can cause internal stress in the lens elements. To protect the optics, you must allow the FFC to acclimate slowly inside its protective case for up to an hour before use in extreme temperature differences.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat do the T-2 quick changers in the FFC All-in-One Set allow me to do?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe two T-2 quick changers provide significant operational flexibility. They allow you to:\n\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInstantly switch between a visual setup (with the 1.25\" ClickLock) and an imaging setup (with a T-2 camera).\u003c\/li\u003e\n\u003cli\u003eEasily rotate your camera for perfect framing without loosening any threaded connections.\u003c\/li\u003e\n\u003cli\u003eQuickly swap between pre-assembled stacks of extension tubes to change magnification factors.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow would I use the Baader FFC All-in-One Set for high-resolution imaging of Jupiter with my T-2 planetary camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFor imaging Jupiter with a planetary camera, you would assemble the Baader FFC and T-2 extension tubes to achieve a focal ratio between f\/20 and f\/25. You would start by inserting the 2\" nosepiece into your telescope's focuser, followed by the FFC housing. Then, you would add T-2 extension tubes to reach the ~150mm distance for 4x magnification (or adjust as needed) before attaching your T-2 camera. The T-2 quick changer allows you to easily rotate the camera to align with Jupiter's cloud belts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMagnification Range (System)\u003c\/td\u003e\n\u003ctd\u003e3x – 8x+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMagnification Range (Included Set)\u003c\/td\u003e\n\u003ctd\u003e3x – 4x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Design\u003c\/td\u003e\n\u003ctd\u003e4-Element \/ 2-Group Fluorite-Flatfield-Converter (FFC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKey Optical Elements\u003c\/td\u003e\n\u003ctd\u003e2x Calcium Fluorite (CaF2) Lenses\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIlluminated Field (at 4x)\u003c\/td\u003e\n\u003ctd\u003e90 mm (Flat Field)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Connectivity\u003c\/td\u003e\n\u003ctd\u003eBaader Astro T-2 System, 2\" Barrel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003e1.25\" Eyepieces, T-2 Threaded Cameras\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eGermany\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e-54, 797 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAR-Coating\u003c\/td\u003e\n\u003ctd\u003eHigh transmission multi-coated (HT-MC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThreaded for filters\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Connection (eyepiece\/-camera-sided)\u003c\/td\u003e\n\u003ctd\u003eM42 x 0.75 (T-2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003eM42 x 0.75 (T-2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003eø 2\" (50.8mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_FFC_All-in-One_T-2_Set_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_FFC_All-in-One_T-2_Set_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium FFC All-in-One T-2 Set Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":52913247093021,"sku":"BAA-2458281","price":1180.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/BaaderPlanetarium-FFC-All-in-One-T-2-Set-3-4x-magnification-for-1-and-T-2-cameras-1_bb0cb326-81b5-48a5-a158-e986fad03e35.jpg?v=1789088679","url":"https:\/\/davidastro.com\/en-us\/products\/baader-planetarium-ffc-all-in-one-t-2-set-3-4x-magnification-for-1-25-inch-and-t-2-cameras","provider":"David Astro","version":"1.0","type":"link"}