{"product_id":"ed80-fcd100-series-air-spaced-triplet-refractor-telescope-and-field-flattener-f-5-to-f-7","title":"ED80-FCD100 Series Air-Spaced Triplet Refractor Telescope and Field Flattener f\/5 to f\/7","description":"\u003ch1\u003eED80-FCD100 Series Air-Spaced Triplet Refractor Telescope and Field Flattener f\/5 to f\/7\u003c\/h1\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eDescription\u003c\/h2\u003e\n\u003cp\u003e\n  The Explore Scientific ED80-FCD100 Series Air-Spaced Triplet Refractor Telescope with Field Flattener is a high-performance optical instrument designed for astronomers and astrophotographers who demand crisp, color-accurate views across the entire field of view. At the heart of this telescope is genuine HOYA FCD100 extra-low dispersion (ED) glass, delivering chromatic aberration correction and color fidelity that rivals the renowned Ohara FPL-53 glass. The air-spaced triplet optical design virtually eliminates false color, while proprietary EMD multi-layer coatings maximize light transmission for brilliantly sharp images. Paired with the Field Flattener (f\/5 to f\/7), this bundle is purpose-built to produce perfectly flat, pin-sharp star fields from edge to edge - ideal for wide-field astrophotography.\n\u003c\/p\u003e\n\u003cp\u003e\n  With an 80mm aperture and 480mm focal length, the ED80 strikes the perfect balance between portability and optical power, revealing stunning lunar details, planetary rings, and deep-sky objects with high contrast. Weighing just 7.5 lbs, it excels as a grab-and-go visual scope or as a dedicated guide scope alongside a larger imaging rig. Whether you're shooting the Milky Way, tracking deep-sky nebulae, or guiding a heavy payload, this telescope and field flattener combo delivers the performance serious imagers expect.\n\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHOYA FCD100 ED Glass:\u003c\/strong\u003e Genuine extra-low dispersion glass comparable to Ohara FPL-53 - delivers exceptional chromatic aberration correction and true-to-life color fidelity.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAir-Spaced Triplet Design:\u003c\/strong\u003e Three-element air-spaced optical design virtually eliminates chromatic aberrations for high-contrast, color-pure views.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eField Flattener f\/5 to f\/7 Included:\u003c\/strong\u003e Corrects field curvature across the full image circle for tack-sharp stars edge-to-edge - essential for wide-field astrophotography.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEMD Multi-Layer Coatings:\u003c\/strong\u003e Proprietary coatings optimize light transmission across the optical path for brilliant, high-fidelity images.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e80mm Aperture \/ 480mm Focal Length:\u003c\/strong\u003e Versatile optical specs at f\/6 that balance grab-and-go portability with sharp planetary and deep-sky performance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e2.5\" Hexagonal Focuser:\u003c\/strong\u003e Rugged and precise, this focuser supports imaging payloads up to 10 lbs - compatible with heavy camera and accessory setups.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLightweight at 7.5 lbs (3.4 kg):\u003c\/strong\u003e Easy to transport, quick to set up, and mountable on a wide range of equatorial and alt-az mounts.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVixen Dovetail:\u003c\/strong\u003e Standard Vixen-style dovetail ensures broad compatibility with popular mount systems.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual-Purpose Design:\u003c\/strong\u003e Functions as a standalone visual and imaging scope or as a guide scope alongside larger telescopes in astrophotography rigs.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDew Shield Included:\u003c\/strong\u003e Integrated dew shield helps protect the objective lens and reduce stray light during long imaging sessions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eWhat's Included\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eED80-FCD100 Series Air-Spaced Triplet Refractor Telescope\u003c\/li\u003e\n  \u003cli\u003eField Flattener f\/5 to f\/7\u003c\/li\u003e\n  \u003cli\u003eFree Backpack Carrying Case (limited time bonus offer)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eWhy You'll Love It\u003c\/h2\u003e\n\u003cp\u003e\n  The ED80-FCD100 with Field Flattener is the kind of telescope that earns a permanent place in your kit - trusted by amateur astronomers and serious astrophotographers alike for its optical quality and rock-solid build. Explore Scientific has engineered this scope to perform night after night, whether you're imaging from a dark-sky site or guiding from your backyard. The inclusion of the f\/5-to-f\/7 field flattener means you're getting a system that's ready to perform right out of the box, with no corner-star distortion to fight in post-processing. The lightweight, compact body makes transport a breeze, while the heavy-duty 2.5\" hexagonal focuser gives you the confidence to run demanding camera setups without flex or slip. For visual observers, the HOYA FCD100 glass rewards patience with views that are punchy, contrasty, and beautifully color-balanced. This is a telescope built for those who take the night sky seriously.\n\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eProduct Specifications\u003c\/h2\u003e\n\u003cdiv class=\"custom-product-faq\"\u003e\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eView Product Specs\u003c\/strong\u003e\u003c\/summary\u003e\n\u003ctable border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eItem Number\u003c\/th\u003e\n\u003ctd\u003eFCD100-0806-02\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAperture\u003c\/th\u003e\n\u003ctd\u003e80mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFocal Length\u003c\/th\u003e\n\u003ctd\u003e480mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFocal Ratio\u003c\/th\u003e\n\u003ctd\u003ef\/6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eField Flattener Range\u003c\/th\u003e\n\u003ctd\u003ef\/5 to f\/7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLimiting Magnitude\u003c\/th\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eResolution\u003c\/th\u003e\n\u003ctd\u003e1.45 arcsec\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTube Length (with Dew Shield)\u003c\/th\u003e\n\u003ctd\u003e18.5\" \/ 475mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTube Length (without Dew Shield)\u003c\/th\u003e\n\u003ctd\u003e15\" \/ 381mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTube Diameter\u003c\/th\u003e\n\u003ctd\u003e85mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e7.5 lb \/ 3.4 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFocuser\u003c\/th\u003e\n\u003ctd\u003e2.5\" Hexagonal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax Imaging Payload\u003c\/th\u003e\n\u003ctd\u003e10 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDovetail\u003c\/th\u003e\n\u003ctd\u003eVixen\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOptical Design\u003c\/th\u003e\n\u003ctd\u003eAir-Spaced Triplet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eGlass Type\u003c\/th\u003e\n\u003ctd\u003eHOYA FCD100 Extra-Low Dispersion (ED)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCoatings\u003c\/th\u003e\n\u003ctd\u003eProprietary EMD Multi-Layer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eExplore Scientific\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003cdiv class=\"custom-product-faq\"\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat does the Field Flattener do, and why do I need it?\u003c\/summary\u003e\n\u003cp class=\"faq-content\"\u003eA field flattener corrects the natural curvature of the focal plane that occurs with most refractor telescopes. Without it, stars near the edges of your camera sensor can appear distorted or out of focus even when the center is sharp. The included f\/5-to-f\/7 field flattener ensures pin-sharp stars across the entire image circle, making it essential for wide-field astrophotography with full-frame or APS-C cameras.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs this telescope good for visual observing, or is it primarily for astrophotography?\u003c\/summary\u003e\n\u003cp class=\"faq-content\"\u003eIt excels at both. The HOYA FCD100 ED glass and air-spaced triplet design produce crisp, color-accurate views that visual observers will appreciate for lunar, planetary, and deep-sky work. For astrophotography, the combination of the triplet optics and field flattener makes this a capable wide-field imaging system ready to use right out of the box.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan this telescope be used as a guide scope?\u003c\/summary\u003e\n\u003cp class=\"faq-content\"\u003eYes - the ED80's lightweight 7.5 lb body and Vixen dovetail make it an excellent candidate for use as an autoguider scope alongside a larger imaging telescope. Its 480mm focal length provides a useful guiding field, and the rugged 2.5\" hexagonal focuser holds position reliably under the demands of long imaging sessions.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat mounts is this telescope compatible with?\u003c\/summary\u003e\n\u003cp class=\"faq-content\"\u003eThe ED80-FCD100 comes with a standard Vixen dovetail, which is compatible with a wide range of equatorial and alt-azimuth mounts that accept Vixen-style saddles. It is also available in a bundle with the Explore Scientific iEXOS-100-02 PMC-Eight Equatorial Tracker if you need a complete mount solution.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the warranty on this telescope?\u003c\/summary\u003e\n\u003cp class=\"faq-content\"\u003eThis telescope comes with a limited warranty from Explore Scientific. To activate full coverage, you must register your product within 60 days of purchase. Please refer to the Explore Scientific Warranty Policy for complete terms and conditions.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow is this telescope shipped?\u003c\/summary\u003e\n\u003cp class=\"faq-content\"\u003eThe ED80-FCD100 ships via standard parcel carrier (such as UPS or FedEx) in its original manufacturer packaging. It does not ship on a freight pallet. Orders over $70 within the continental United States qualify for free standard shipping.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e","brand":"Explore Scientific","offers":[{"title":"Default Title","offer_id":55918234403121,"sku":"FCD100-0806-FF","price":799.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1724\/7681\/files\/FCD100-0806-02-FF.jpg?v=1787662849","url":"https:\/\/omahasportsandgames.com\/products\/ed80-fcd100-series-air-spaced-triplet-refractor-telescope-and-field-flattener-f-5-to-f-7","provider":"Omaha Sports \u0026 Games","version":"1.0","type":"link"}