{"product_id":"explore-scientific-es-fcd100-0806-ff-iexos100","title":"Explore Scientific ED80-FCD100 Series Air-Spaced Triplet Refractor Telescope (Bundle)","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eComplete astrophotography bundle with 80mm triplet refractor and GoTo mount\u003c\/li\u003e\n\u003cli\u003e80mm aperture and 480mm focal length for wide-field imaging\u003c\/li\u003e\n\u003cli\u003eHOYA FCD100 ED glass for superior chromatic aberration correction\u003c\/li\u003e\n\u003cli\u003eiEXOS-100 mount supports a 19 lb payload with PMC-Eight wireless control\u003c\/li\u003e\n\u003cli\u003eIncludes a field flattener designed for f\/5 to f\/7 systems\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\u003eED80-FCD100 Series Air-Spaced Triplet Refractor Telescope (Bundle)\u003c\/h2\u003e\n\u003cp\u003eThis Explore Scientific ED80-FCD100 bundle combines a premium 80mm triplet refractor with a portable GoTo equatorial mount, creating a complete astrophotography system ready for the field. The optical tube features a 480mm focal length and genuine HOYA FCD100 ED glass for color-true, high-contrast images, supported by a robust 2.5\" hexagonal focuser that holds up to 10 lbs of camera gear. The included iEXOS-100 mount carries a total payload of 19 lbs, easily handling the lightweight 7.5 lb telescope and your imaging train. With a dedicated field flattener and two 2.2 lb counterweights included, this package provides everything needed to start capturing stunning wide-field images of deep-sky objects.\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\u003eED80 Triplet: 80mm Aperture with HOYA FCD100 Glass\u003c\/h3\u003e\n\u003cp\u003eThe core of this bundle is the ED80 refractor, an air-spaced triplet designed for pristine imaging. Its 80mm objective lens uses HOYA FCD100 extra-low dispersion glass, which provides chromatic aberration correction comparable to Ohara's FPL-53. This design virtually eliminates false color, ensuring stars are sharp, pinpoint sources of light with accurate color fidelity. The 480mm focal length offers a wide field of view, perfect for framing large nebulae and star clusters, while Explore Scientific's EMD multi-layer coatings maximize light transmission for brighter, more detailed views.\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\u003eField Flattener for f\/5 to f\/7 Systems\u003c\/h3\u003e\n\u003cp\u003eAstrophotography with fast refractors reveals field curvature, causing stars at the edge of the frame to appear elongated. This bundle includes a field flattener specifically designed to correct this aberration in optical systems from f\/5 to f\/7. It creates a flat focal plane across your entire camera sensor, ensuring sharp stars from corner to corner. The flattener requires a precise back focus of 55mm (+\/- 2mm) between the unit and your sensor, a standard distance easily achieved with most DSLRs and dedicated astronomy cameras using common adapters.\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\u003eiEXOS-100: 19 lb Payload with PMC-Eight Control\u003c\/h3\u003e\n\u003cp\u003eThe iEXOS-100 is a sophisticated yet portable German equatorial mount. Its PMC-Eight control system uses 8 independent CPUs to deliver precise, responsive, and reliable GoTo slewing and tracking. With a total payload capacity of 19 lbs, it provides a stable platform for the 7.5 lb ED80 and a full imaging rig. Built-in WiFi and Bluetooth allow for complete wireless control from a tablet or PC using the free ExploreStars app or any ASCOM-compatible software, giving you access to a vast database of celestial objects from a user-friendly interface.\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 Complete 7.5 lb Astrophotography Rig\u003c\/h3\u003e\n\u003cp\u003eThis package is engineered as a cohesive imaging solution. The lightweight 7.5 lb optical tube is perfectly matched to the mount's 19 lb capacity, leaving ample margin for cameras, guide scopes, and other accessories. The bundle includes two 2.2 lb counterweights to achieve perfect balance. From the integrated polar sight hole for quick alignment to the wireless GoTo control and imaging-specific optics, this ED80 bundle is a powerful, portable, and complete system for capturing the night sky.\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 kind of camera is recommended for the ED80-FCD100 bundle?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis bundle is ideal for both \u003cstrong\u003eDSLR\/mirrorless cameras\u003c\/strong\u003e and \u003cstrong\u003ededicated astronomy cameras\u003c\/strong\u003e with APS-C or smaller sensors. The critical factor is achieving the required \u003cstrong\u003e55mm back focus\u003c\/strong\u003e from the field flattener's rear flange to the camera sensor. Most DSLRs naturally meet this spacing with a standard T-ring, while astronomy cameras may require a combination of extension tubes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow should I power the iEXOS-100 mount for a full night of imaging?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe included battery pack uses \u003cstrong\u003e8 C-cell batteries\u003c\/strong\u003e, which may provide less than two hours of operation. For a full night, it is highly recommended to use an external power source. A \u003cstrong\u003e12V DC lithium-ion power bank\u003c\/strong\u003e or a compatible \u003cstrong\u003eAC power adapter\u003c\/strong\u003e will provide stable voltage and reliable performance for long imaging sessions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this ED80-FCD100 bundle for visual observation?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the ED80 telescope itself is an excellent visual instrument. However, the included \u003cstrong\u003efield flattener is for photographic use only\u003c\/strong\u003e and cannot be used with an eyepiece. To use the telescope visually, simply remove the flattener and insert a 2\" or 1.25\" diagonal and eyepiece directly into the 2.5\" focuser.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I image the Andromeda Galaxy (M31) with this 480mm focal length setup?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. The 480mm focal length is nearly ideal for framing the Andromeda Galaxy (M31). When paired with an APS-C sensor, the entire galaxy, including its faint outer arms and satellite galaxies M32 and M110, will fit comfortably within a single frame, making this a perfect wide-field system for large targets.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the iEXOS-100 track an object like the Orion Nebula (M42) for long exposures?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAfter a proper polar alignment using the built-in sight hole, the iEXOS-100's PMC-Eight system provides precise sidereal tracking. The German equatorial design prevents field rotation, which is critical for long exposures on deep-sky objects like the Orion Nebula (M42). For exposures longer than a minute, pairing this system with a separate autoguiding setup will yield the sharpest possible results.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat software do I need to control the iEXOS-100 mount?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou can control the mount wirelessly with the free \u003cstrong\u003eExploreStars app\u003c\/strong\u003e, available for Windows, Android, Amazon Fire, and Apple tablets. The mount is also fully \u003cstrong\u003eASCOM compliant\u003c\/strong\u003e. By installing the PMC-Eight ASCOM driver on a Windows PC, you can control it with most popular astronomy software, such as N.I.N.A., Sequence Generator Pro, or Stellarium.\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\u003eTelescope Optical Design\u003c\/td\u003e\n\u003ctd\u003eAir-Spaced Triplet Apochromatic Refractor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAperture\u003c\/td\u003e\n\u003ctd\u003e80mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e480mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eObjective Glass\u003c\/td\u003e\n\u003ctd\u003eHOYA FCD100 ED Glass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoatings\u003c\/td\u003e\n\u003ctd\u003eEnhanced Multilayer Deposition (EMD)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser\u003c\/td\u003e\n\u003ctd\u003e2.5\" Hexagonal Rack-and-Pinion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser Capacity\u003c\/td\u003e\n\u003ctd\u003e10 lbs (4.5 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope Weight\u003c\/td\u003e\n\u003ctd\u003e7.5 lbs (3.4 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount Type\u003c\/td\u003e\n\u003ctd\u003eGerman Equatorial GoTo Mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount Control System\u003c\/td\u003e\n\u003ctd\u003ePMC-Eight Precision Motion Control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount Payload Capacity\u003c\/td\u003e\n\u003ctd\u003e19 lbs (8.6 kg) total\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnectivity\u003c\/td\u003e\n\u003ctd\u003eWiFi and Bluetooth\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField Flattener Compatibility\u003c\/td\u003e\n\u003ctd\u003ef\/5 to f\/7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField Flattener Back Focus\u003c\/td\u003e\n\u003ctd\u003e55mm (±2mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCounterweights Included\u003c\/td\u003e\n\u003ctd\u003e2 x 2.2 lb (1 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount Power\u003c\/td\u003e\n\u003ctd\u003e8x C-Cell Batteries (not included) or external 12V DC\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\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eED80-FCD100 Triplet Refractor OTA\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eiEXOS-100 PMC-Eight GoTo Equatorial Mount\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eField Flattener for f\/5-f\/7 Systems\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eTripod with Accessory Tray\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e2.2 lb Counterweight\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 2\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBattery Pack for Mount\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\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\/Explore_Scientific_PMC-Eight_iEXOS-100_Booklet_English_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\u003ca href=\"https:\/\/davidastro.com\/pages\/explore-scientific-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eExplore Scientific Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Explore Scientific","offers":[{"title":"Default Title","offer_id":52909188284701,"sku":"ES-FCD100-0806-FF-IEXOS100","price":1699.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/ExploreScientific-ED80-FCD100-Series-Air-Spaced-Triplet-Refractor-Telescope-Bundle-1_2ba20f7a-b0f2-40a2-a9ad-8842200a6e3d.jpg?v=1789060638","url":"https:\/\/davidastro.com\/fr-us\/products\/explore-scientific-es-fcd100-0806-ff-iexos100","provider":"David Astro","version":"1.0","type":"link"}