{"product_id":"explore-scientific-ed102-fcd100-triplet-apo-refractor","title":"Explore Scientific FCD100 Triplet APO Refractor","description":"\u003cdiv class=\"kt-page\"\u003e\n\n\u003cstyle\u003e\n.kt-page{--kt-accent:#00A1CF;--kt-accent-hover:#008DB7;max-width:1100px;margin:0 auto;font-family:inherit;}\n.kt-page .kt-hero{display:flex;align-items:center;gap:40px;margin-bottom:36px;}\n.kt-page .kt-hero-copy{flex:1 1 55%;}\n.kt-page .kt-hero-img{flex:1 1 40%;text-align:center;}\n.kt-page .kt-sq{width:100%;max-width:420px;aspect-ratio:1\/1;margin:0 auto;background:#ffffff;border-radius:6px;display:flex;align-items:center;justify-content:center;overflow:hidden;}\n.kt-page .kt-sq img{max-width:92%;max-height:92%;width:auto;height:auto;object-fit:contain;}\n.kt-page .kt-hero-copy h2{font-size:26px;margin-bottom:14px;}\n.kt-page .kt-hero-copy p{font-size:16px;line-height:1.6;margin-bottom:14px;}\n.kt-page .kt-features{display:flex;align-items:flex-start;gap:40px;margin:40px 0;}\n.kt-page .kt-features-copy{flex:1 1 55%;}\n.kt-page .kt-features-img{flex:1 1 40%;text-align:center;}\n.kt-page .kt-section-heading{font-size:21px;display:inline-block;padding-bottom:8px;border-bottom:2px solid var(--kt-accent);margin-bottom:18px;}\n.kt-page .kt-feature-list{list-style:none;margin:0;padding:0;}\n.kt-page .kt-feature-list li{font-size:16px;line-height:1.5;margin-bottom:12px;padding-left:26px;position:relative;}\n.kt-page .kt-feature-list li:before{content:\"\\2713\";color:var(--kt-accent);font-weight:bold;position:absolute;left:0;}\n.kt-page .kt-feature-list b{color:#222;}\n.kt-page .kt-specs-wrap{box-sizing:border-box;padding:0 24px;}\n.kt-page .kt-specs{width:100%;border-collapse:collapse;margin:30px 0;font-size:14px;}\n.kt-page .kt-specs th,.kt-page .kt-specs td{border:2px solid #000;padding:10px 12px;text-align:left;}\n.kt-page .kt-specs th{background:#00A1CF;color:#fff;font-size:15px;}\n.kt-page .kt-specs td:first-child{font-weight:bold;white-space:nowrap;}\n.kt-page .kt-specs tr:nth-child(even){background:#f2f2f2;}\n.kt-page .kt-specs tr:nth-child(odd){background:#ffffff;}\n.kt-page .kt-cta{text-align:center;margin:40px 0;font-size:18px;font-weight:bold;}\n.kt-page .kt-cta-buttons{display:flex;justify-content:center;gap:16px;margin-top:16px;flex-wrap:wrap;}\n.kt-page .kt-cta-buttons a{display:inline-block;padding:12px 26px;border:2px solid #00A1CF;border-radius:4px;color:#00A1CF;text-decoration:none;font-weight:bold;font-size:15px;transition:all .15s ease;}\n.kt-page .kt-cta-buttons a:hover{background:#00A1CF;color:#fff;}\n@media (max-width:768px){\n  .kt-page .kt-hero,.kt-page .kt-features{flex-direction:column;}\n  .kt-page .kt-hero-img img,.kt-page .kt-features-img img{max-width:400px;}\n  .kt-page .kt-hero-copy p,.kt-page .kt-features-copy p{font-size:17px;}\n  .kt-page .kt-cta-buttons{display:grid;grid-template-columns:1fr 1fr;gap:12px;}\n  .kt-page .kt-cta-buttons a:nth-child(3){grid-column:1 \/ span 2;}\n}\n\u003c\/style\u003e\n\n\u003cdiv class=\"kt-hero\"\u003e\n  \u003cdiv class=\"kt-hero-copy\"\u003e\n    \u003ch2\u003eTriplet APO Optics Across the FCD100 Series\u003c\/h2\u003e\n    \u003cp\u003eEvery scope in this line pairs genuine HOYA FCD100 extra-low dispersion glass with a high refractive index element, correcting chromatic aberration so the Moon, planets, and deep-sky objects come through with true color fidelity and pinpoint contrast.\u003c\/p\u003e\n    \u003cp\u003eEvery optical surface carries proprietary EMD multi-layer coatings, and the diffraction-limited design keeps views sharp from wide-field star fields all the way up to high-power planetary detail. Pick the 80mm, 102mm, or 127mm aperture above to match your budget and portability needs, with carbon fiber tube options available on the 102mm and 127mm models for reduced weight.\u003c\/p\u003e\n    \u003cp\u003eA precision 2.5\" HEX rack-and-pinion focuser provides smooth, stable focus and comfortably supports imaging setups up to 10 lbs on every model, making each an easy grab-and-go scope or a capable auxiliary instrument for guiding on a larger rig.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"kt-hero-img\"\u003e\n    \u003cdiv class=\"kt-sq\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0717\/7968\/0367\/files\/FCD100_102mm_side_shot_Burst_577946c4-43fb-482c-9605-6da0fdf6a501.jpg?v=1784830339\" alt=\"Explore Scientific FCD100 Series triplet apochromat refractor optical tube assembly\"\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"kt-features\"\u003e\n  \u003cdiv class=\"kt-features-copy\"\u003e\n    \u003ch3 class=\"kt-section-heading\"\u003eKey Features\u003c\/h3\u003e\n    \u003cul class=\"kt-feature-list\"\u003e\n      \u003cli\u003e\n\u003cb\u003ePremium Triplet APO Optics\u003c\/b\u003e - genuine HOYA FCD100 extra-low dispersion glass for exceptional color correction\u003c\/li\u003e\n      \u003cli\u003e\n\u003cb\u003eDiffraction-Limited Views\u003c\/b\u003e - proprietary EMD multi-layer coatings on every optical surface for brilliant, high-contrast images\u003c\/li\u003e\n      \u003cli\u003e\n\u003cb\u003eThree Apertures\u003c\/b\u003e - 80mm, 102mm, and 127mm options to match your budget and portability needs\u003c\/li\u003e\n      \u003cli\u003e\n\u003cb\u003eCarbon Fiber Available\u003c\/b\u003e - lighter carbon fiber tubes offered on the 102mm and 127mm models\u003c\/li\u003e\n      \u003cli\u003e\n\u003cb\u003eRobust 2.5\" HEX Focuser\u003c\/b\u003e - smooth rack-and-pinion focusing that supports imaging gear up to 10 lbs on every model\u003c\/li\u003e\n      \u003cli\u003e\n\u003cb\u003eAuxiliary-Scope Ready\u003c\/b\u003e - doubles as a high-quality guide or imaging scope on larger setups\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"kt-features-img\"\u003e\n    \u003cdiv class=\"kt-sq\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0717\/7968\/0367\/files\/FCD100_102mm_Front_Elements.jpg?v=1784830339\" alt=\"Explore Scientific FCD100 Series HOYA FCD100 triplet lens elements\"\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"kt-specs-wrap\" data-kt-specs-wrap\u003e\n\u003ctable class=\"kt-specs\"\u003e\n  \u003ctr\u003e\n    \u003cth\u003eSpecification\u003c\/th\u003e\n    \u003cth\u003e80mm\u003c\/th\u003e\n    \u003cth\u003e102mm\u003c\/th\u003e\n    \u003cth\u003e102mm Carbon Fiber\u003c\/th\u003e\n    \u003cth\u003e127mm\u003c\/th\u003e\n    \u003cth\u003e127mm Carbon Fiber\u003c\/th\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eModel \/ SKU\u003c\/td\u003e\n\u003ctd\u003eFCD100-0806-02\u003c\/td\u003e\n\u003ctd\u003eFCD100-10207-02\u003c\/td\u003e\n\u003ctd\u003eFCD100-10207-CF-01\u003c\/td\u003e\n\u003ctd\u003eFCD100-127075-02\u003c\/td\u003e\n\u003ctd\u003eFCD100-127075-CF-01\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eOptical Design\u003c\/td\u003e\n\u003ctd colspan=\"5\"\u003eAir-Spaced Triplet Apochromat Refractor, HOYA FCD100 Extra-Low Dispersion (ED) Glass\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eAperture\u003c\/td\u003e\n\u003ctd\u003e80mm\u003c\/td\u003e\n\u003ctd\u003e102mm\u003c\/td\u003e\n\u003ctd\u003e102mm\u003c\/td\u003e\n\u003ctd\u003e127mm\u003c\/td\u003e\n\u003ctd\u003e127mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e480mm\u003c\/td\u003e\n\u003ctd\u003e714mm\u003c\/td\u003e\n\u003ctd\u003e714mm\u003c\/td\u003e\n\u003ctd\u003e952mm\u003c\/td\u003e\n\u003ctd\u003e952mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eFocal Ratio\u003c\/td\u003e\n\u003ctd\u003ef\/6\u003c\/td\u003e\n\u003ctd\u003ef\/7\u003c\/td\u003e\n\u003ctd\u003ef\/7\u003c\/td\u003e\n\u003ctd\u003ef\/7.5\u003c\/td\u003e\n\u003ctd\u003ef\/7.5\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eLimiting Magnitude\u003c\/td\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003ctd\u003e12.5\u003c\/td\u003e\n\u003ctd\u003e12.5\u003c\/td\u003e\n\u003ctd\u003e13\u003c\/td\u003e\n\u003ctd\u003e13\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e1.45 arcsec\u003c\/td\u003e\n\u003ctd\u003e1.14 arcsec\u003c\/td\u003e\n\u003ctd\u003e1.14 arcsec\u003c\/td\u003e\n\u003ctd\u003e0.9 arcsec\u003c\/td\u003e\n\u003ctd\u003e0.9 arcsec\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eTube Length (w\/ dew shield)\u003c\/td\u003e\n\u003ctd\u003e18.5\" \/ 475mm\u003c\/td\u003e\n\u003ctd\u003e30.5\" \/ 774mm\u003c\/td\u003e\n\u003ctd\u003eNot published\u003c\/td\u003e\n\u003ctd\u003e41.75\" \/ 1,060mm\u003c\/td\u003e\n\u003ctd\u003e41.75\" \/ 1,060mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eTube Length (w\/o dew shield)\u003c\/td\u003e\n\u003ctd\u003e15\" \/ 381mm\u003c\/td\u003e\n\u003ctd\u003e23.75\" \/ 603mm\u003c\/td\u003e\n\u003ctd\u003eNot published\u003c\/td\u003e\n\u003ctd\u003e33.25\" \/ 849mm\u003c\/td\u003e\n\u003ctd\u003e33.25\" \/ 849mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eTube Diameter\u003c\/td\u003e\n\u003ctd\u003e85mm\u003c\/td\u003e\n\u003ctd\u003e119mm\u003c\/td\u003e\n\u003ctd\u003eNot published\u003c\/td\u003e\n\u003ctd\u003e130mm\u003c\/td\u003e\n\u003ctd\u003e145mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e7.5 lbs \/ 3.4 kg\u003c\/td\u003e\n\u003ctd\u003e10.9 lbs \/ 4.94 kg\u003c\/td\u003e\n\u003ctd\u003e9.5 lbs \/ 4.3 kg\u003c\/td\u003e\n\u003ctd\u003e18 lbs \/ 8.2 kg\u003c\/td\u003e\n\u003ctd\u003e14 lbs \/ 6.4 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eDovetail\u003c\/td\u003e\n\u003ctd\u003eVixen-style\u003c\/td\u003e\n\u003ctd\u003e45mm Wide V-Block (Vixen-style)\u003c\/td\u003e\n\u003ctd\u003e45mm Wide, Cone-Angle Adjustable (Vixen-style)\u003c\/td\u003e\n\u003ctd\u003eVixen-style\u003c\/td\u003e\n\u003ctd\u003eVixen-style\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eFocuser\u003c\/td\u003e\n\u003ctd colspan=\"5\"\u003e2.5\" HEX Rack-and-Pinion, supports up to 10 lbs of imaging gear\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eWhat's Included\u003c\/td\u003e\n\u003ctd colspan=\"5\"\u003eOptical Tube Assembly with Accessories\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd colspan=\"5\"\u003eLimited warranty, activated with registration within 60 days of purchase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cscript\u003e\n(function(){\n  function fitWrap(wrap){\n    var container = wrap.closest('.product--container') || wrap.closest('.page-content') || wrap.closest('.product--outer');\n    if(!container){ wrap.style.marginLeft=''; wrap.style.width=''; return; }\n    var cRect = container.getBoundingClientRect();\n    var pRect = wrap.parentNode.getBoundingClientRect();\n    var leftOffset = pRect.left - cRect.left;\n    wrap.style.marginLeft = (-leftOffset) + 'px';\n    wrap.style.width = cRect.width + 'px';\n  }\n  function fitAll(){\n    var wraps = document.querySelectorAll('[data-kt-specs-wrap]');\n    for (var i = 0; i \u003c wraps.length; i++) { fitWrap(wraps[i]); }\n  }\n  if (document.readyState === 'loading') {\n    document.addEventListener('DOMContentLoaded', fitAll);\n  } else {\n    fitAll();\n  }\n  window.addEventListener('resize', fitAll);\n  window.addEventListener('load', fitAll);\n})();\n\u003c\/script\u003e\n\n\u003cp class=\"kt-cta\"\u003e\n  Talk to a Specialist\n  \u003cspan class=\"kt-cta-buttons\"\u003e\n    \u003ca href=\"\/pages\/contact\" style=\"display:inline-block;padding:12px 26px;border:2px solid #00A1CF;border-radius:4px;color:#00A1CF;text-decoration:none;font-weight:bold;\"\u003eContact Us\u003c\/a\u003e\n    \u003ca href=\"mailto:sales@telescopedepot.com\" style=\"display:inline-block;padding:12px 26px;border:2px solid #00A1CF;border-radius:4px;color:#00A1CF;text-decoration:none;font-weight:bold;\"\u003eEmail a Specialist\u003c\/a\u003e\n    \u003ca href=\"\/pages\/shipping\" style=\"display:inline-block;padding:12px 26px;border:2px solid #00A1CF;border-radius:4px;color:#00A1CF;text-decoration:none;font-weight:bold;\"\u003eShipping Info\u003c\/a\u003e\n  \u003c\/span\u003e\n\u003c\/p\u003e\n\n\u003c\/div\u003e","brand":"Explore Scientific","offers":[{"title":"102mm","offer_id":53875539148911,"sku":"FCD100-10207-02","price":1199.99,"currency_code":"USD","in_stock":true},{"title":"80mm","offer_id":53875585351791,"sku":"FCD100-0806-02","price":699.99,"currency_code":"USD","in_stock":true},{"title":"102mm CF","offer_id":53875585384559,"sku":"FCD100-10207-CF-01","price":1299.99,"currency_code":"USD","in_stock":true},{"title":"127mm","offer_id":53875585417327,"sku":"FCD100-127075-02","price":1599.99,"currency_code":"USD","in_stock":true},{"title":"127mm CF","offer_id":53875585450095,"sku":"FCD100-127075-CF-01","price":1599.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0717\/7968\/0367\/files\/FCD100_102mm_side_shot_Burst_577946c4-43fb-482c-9605-6da0fdf6a501.jpg?v=1784830339","url":"https:\/\/telescopedepot.com\/products\/explore-scientific-ed102-fcd100-triplet-apo-refractor","provider":"Telescope Depot","version":"1.0","type":"link"}