{"product_id":"takahashi-fsq-85edx-w-flattener","title":"Takahashi FSQ-85EDX w\/ Flattener","description":"\u003ch1 dir=\"ltr\"\u003eTakahashi FSQ-85EDX Refractor OTA\u003c\/h1\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide-field imaging, packed smaller.\u003c\/strong\u003e The FSQ-85EDX brings the FSQ-106EDX4's wide-field deep sky pedigree into a more mobile package, built for imagers who want that flat, wide field without hauling a bigger tube.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA quadruplet that means business.\u003c\/strong\u003e The apochromatic Petzval quadruplet design, built with ED glass, delivers a 450 mm focal length and a genuinely flat field across 5.6 degrees of sky, the kind of coverage wide-field imagers chase.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReady for today's sensors, out of the box.\u003c\/strong\u003e It ships with a 1.01X corrector built to make the most of modern, smaller-pixel sensors, holding a 44 mm image circle for edge-to-edge sharpness.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA focuser built to be trusted.\u003c\/strong\u003e The rack-and-pinion focuser is deliberately oversized and driven by a dual 1\/7 ratio wheel system for precise, repeatable focus, and comes with a CAA (Camera Angle Adjuster) built in for easy photographic framing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePacks down when you need it to.\u003c\/strong\u003e A retractable dew shield saves space in the case without giving up protection in the field.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTurn it into a telephoto lens.\u003c\/strong\u003e Add the optional focal reducer and the FSQ-85EDX becomes a high-end 328 mm astronomical telephoto at F\/3.9, with a 7 degree field of view and a 40 mm image circle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision hardware from a name astrophotographers trust.\u003c\/strong\u003e Like everything else Takahashi builds, the FSQ-85EDX is engineered to deliver night after night, whether you're framing a wide starfield or reaching in for more focal length.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 dir=\"ltr\"\u003eSpecifications\u003c\/h2\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eObjective:\u003c\/strong\u003e Petzval Quadruplet with ED glass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLens Cell:\u003c\/strong\u003e Highly air-spaced quadruplet, 4 lenses in 4 groups, with 2x S-FPL53 ED lenses\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoatings:\u003c\/strong\u003e Hard multicoatings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter:\u003c\/strong\u003e 85 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eAt Prime Focus\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003eFocal Length: 450 mm\u003c\/li\u003e\n\u003cli\u003eFocal Ratio: F\/5.3\u003c\/li\u003e\n\u003cli\u003eMetal Back Distance: 197.5 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eWith 1.01X Field Corrector\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003eFocal Length: 455 mm\u003c\/li\u003e\n\u003cli\u003eFocal Ratio: F\/5.4\u003c\/li\u003e\n\u003cli\u003eImage Circle Diameter: 44 mm\u003c\/li\u003e\n\u003cli\u003eMetal Back Distance: 56.2 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eWith RD QE0.73X Focal Reducer\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003eFocal Length: 327 mm\u003c\/li\u003e\n\u003cli\u003eFocal Ratio: F\/3.8\u003c\/li\u003e\n\u003cli\u003eImage Circle Diameter: 44 mm\u003c\/li\u003e\n\u003cli\u003eMetal Back Distance: 72.2 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eWith EX ED1.5X Focal Extender\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003eFocal Length: 680 mm\u003c\/li\u003e\n\u003cli\u003eFocal Ratio: F\/8\u003c\/li\u003e\n\u003cli\u003eImage Circle Diameter: 44 mm\u003c\/li\u003e\n\u003cli\u003eMetal Back Distance: 117.5 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eOptical Tube\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003eLength: 623 mm (535 mm with dew shield retracted)\u003c\/li\u003e\n\u003cli\u003eTube Diameter: 95 mm\u003c\/li\u003e\n\u003cli\u003eDew Shield Diameter: 114 mm\u003c\/li\u003e\n\u003cli\u003eWeight: 3.6 kg\u003c\/li\u003e\n\u003cli\u003eFocuser: Rack-and-pinion with 1\/7 microfocuser\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 dir=\"ltr\"\u003eWhat's in the Box?\u003c\/h2\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003eFSQ-85EDX Optical Tube Assembly x1\u003c\/li\u003e\n\u003cli\u003e1.01X Field Corrector x1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003eNote: The RD QE0.73X focal reducer and EX ED1.5X focal extender are optional accessories, sold separately.\u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003eSoftware and Docs\u003c\/h2\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0717\/9904\/6464\/files\/FSQ-85EDX_systemchart_EN.pdf?v=1788720395\" target=\"_blank\" rel=\"noopener\"\u003eSystem Chart: Takahashi FSQ-85EDX Refractor (Old)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0717\/9904\/6464\/files\/FSQ85EDX_system_chart_2023.pdf?v=1788720392\" target=\"_blank\" rel=\"noopener\"\u003eSystem Chart: Takahashi FSQ-85EDX Refractor with QB0.73X (2023)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0717\/9904\/6464\/files\/FSQ-85EDX_RD-QE_systemchart_EN.pdf?v=1788720392\" target=\"_blank\" rel=\"noopener\"\u003eSystem Chart: Takahashi FSQ-85EDX Refractor with RD QE0.73X\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0717\/9904\/6464\/files\/FSQ-85EDX_EX-ED_systemchart_EN.pdf?v=1788720395\" target=\"_blank\" rel=\"noopener\"\u003eSystem Chart: Takahashi FSQ-85EDX Refractor with EX ED1.5X\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0717\/9904\/6464\/files\/FSQ-85EDX_instruction_manual_EN.pdf?v=1788720396\" target=\"_blank\" rel=\"noopener\"\u003eInstruction Manual: Takahashi FSQ-85EDX Refractor\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Takahashi","offers":[{"title":"Default Title","offer_id":53107747619136,"sku":"TQE08541","price":3440.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0717\/9904\/6464\/files\/7_2915ec1b-588d-46d4-9e69-d5428943f158.png?v=1788720319","url":"https:\/\/astroworldtelescopes.com\/products\/takahashi-fsq-85edx-w-flattener","provider":"Astroworld Telescopes","version":"1.0","type":"link"}