{"product_id":"airy-disk-apo-204mm-f-7-triplet-ed-fk61-apochromatic-refractor-apo","title":"Airy Disk APO 204mm f\/7 Triplet ED FK61 Apochromatic Refractor APO","description":"\u003cp\u003eThis 8-inch Airy Disk triplet APO uses H-FK61\/CDGM glass in a 204mm f\/7 refractor design with a 1428mm focal length. It is built for high-end visual observers and deep-sky imagers who need serious aperture, resolution, and corrected optical performance.\u003c\/p\u003e\u003cp\u003eThe 204mm platform includes full wideband multi-coating, Losmandy mounting hardware, a 4-inch dual-speed rack-and-pinion focuser, and reducer\/flattener compatibility for full-frame imaging systems.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e 204APO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlass used:\u003c\/strong\u003e H-FK61 CDGM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAperture:\u003c\/strong\u003e 204mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFocal ratio:\u003c\/strong\u003e f\/7\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFocal length:\u003c\/strong\u003e 1428mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e full wideband multi coating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResolving Power:\u003c\/strong\u003e 0.57\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLimit magnitude:\u003c\/strong\u003e 13.3mag\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube material:\u003c\/strong\u003e Aluminum alloy\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDovetail style:\u003c\/strong\u003e Losmandy\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFocuser:\u003c\/strong\u003e 4\" dual-speed 1:10 rack-and-pinion\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable reducers\/flatteners:\u003c\/strong\u003e 0.8x FF, 0.92x FF\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReduced focal length:\u003c\/strong\u003e 1142mm f\/5.6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSensor coverage:\u003c\/strong\u003e Full Frame\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEyepiece clamp:\u003c\/strong\u003e 2\" with 1.25\" Adapter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength extended:\u003c\/strong\u003e 1563mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength hood in:\u003c\/strong\u003e 1332mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOTA weight:\u003c\/strong\u003e 19.455kg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAluminum case:\u003c\/strong\u003e included\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube thread:\u003c\/strong\u003e M201x1.5\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe Airy Disk APO 204mm f\/7 Triplet ED FK61 Apochromatic Refractor APO is built for astronomers who want a premium apochromatic refractor for visual observing, deep-sky imaging, planetary viewing, and portable astrophotography. With carefully selected ED glass, precision mechanics, and wideband multi-coated optics, this Airy Disk telescope is positioned for sharp contrast, refined color correction, and dependable performance under the night sky.\u003c\/p\u003e","brand":"Airy Disk","offers":[{"title":"Default Title","offer_id":48248619466993,"sku":"204APO","price":14900.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0791\/8311\/8577\/files\/674ec1dc832f7ff5041b87cd_1_7.jpg?v=1780592729","url":"https:\/\/novatelescopes.com\/products\/airy-disk-apo-204mm-f-7-triplet-ed-fk61-apochromatic-refractor-apo","provider":"NovaTelescopes","version":"1.0","type":"link"}