{"product_id":"irdk24-telescope","title":"PlaneWave IRDK24 F\/6.5 OTA","description":"\u003ch3 data-start=\"106\" data-end=\"189\"\u003e\u003cstrong data-start=\"110\" data-end=\"189\"\u003ePlaneWave IRDK24 – 24-Inch Infrared-Optimized Dall-Kirkham Telescope System\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"191\" data-end=\"351\"\u003e\u003cstrong data-start=\"191\" data-end=\"351\"\u003eEngineered for peak performance in the infrared spectrum, the IRDK24 is a precision observatory-class instrument tailored for advanced research and imaging.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"353\" data-end=\"767\"\u003eThe \u003cstrong data-start=\"357\" data-end=\"377\"\u003ePlaneWave IRDK24\u003c\/strong\u003e telescope system is built around a 24-inch (610mm) aperture and gold-coated mirrors that are optimized for infrared reflectivity. With a rigid carbon fiber OTA and fused silica optics, the IRDK24 delivers exceptional thermal stability and optical clarity—making it a premier choice for infrared astronomy and scientific applications requiring high-contrast data in non-visible wavelengths.\u003c\/p\u003e\n\u003chr data-start=\"769\" data-end=\"772\"\u003e\n\u003ch3 data-start=\"774\" data-end=\"800\"\u003e\u003cstrong data-start=\"778\" data-end=\"800\"\u003eKey Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"802\" data-end=\"1208\"\u003e\u003cstrong data-start=\"802\" data-end=\"821\"\u003eOptical Design:\u003c\/strong\u003e Infrared-optimized Dall-Kirkham (IRDK)\u003cbr data-start=\"860\" data-end=\"863\"\u003e\u003cstrong data-start=\"863\" data-end=\"882\"\u003eClear Aperture:\u003c\/strong\u003e 610mm (24 in)\u003cbr data-start=\"896\" data-end=\"899\"\u003e\u003cstrong data-start=\"899\" data-end=\"915\"\u003eFocal Ratio:\u003c\/strong\u003e f\/6.5\u003cbr data-start=\"921\" data-end=\"924\"\u003e\u003cstrong data-start=\"924\" data-end=\"941\"\u003eFocal Length:\u003c\/strong\u003e 3974mm\u003cbr data-start=\"948\" data-end=\"951\"\u003e\u003cstrong data-start=\"951\" data-end=\"966\"\u003eBack Focus:\u003c\/strong\u003e 364.46mm from mounting surface\u003cbr data-start=\"997\" data-end=\"1000\"\u003e\u003cstrong data-start=\"1000\" data-end=\"1017\"\u003eImage Circle:\u003c\/strong\u003e 70mm\u003cbr data-start=\"1022\" data-end=\"1025\"\u003e\u003cstrong data-start=\"1025\" data-end=\"1044\"\u003eMirror Coating:\u003c\/strong\u003e Gold (optimized for IR; UV coating optional)\u003cbr data-start=\"1089\" data-end=\"1092\"\u003e\u003cstrong data-start=\"1092\" data-end=\"1112\"\u003eMirror Material:\u003c\/strong\u003e Fused silica (low thermal expansion)\u003cbr data-start=\"1149\" data-end=\"1152\"\u003e\u003cstrong data-start=\"1152\" data-end=\"1169\"\u003eOTA Material:\u003c\/strong\u003e Carbon fiber – lightweight and rigid\u003c\/p\u003e\n\u003chr data-start=\"1210\" data-end=\"1213\"\u003e\n\u003ch3 data-start=\"1215\" data-end=\"1249\"\u003e\u003cstrong data-start=\"1219\" data-end=\"1249\"\u003ePerformance \u0026amp; Applications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1251\" data-end=\"1276\"\u003e\u003cstrong data-start=\"1251\" data-end=\"1274\"\u003eInfrared Astronomy:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"1279\" data-end=\"1330\"\u003e\u003cstrong\u003e- \u003c\/strong\u003eGold-coated mirrors offer maximum IR reflectivity\u003c\/p\u003e\n\u003cp data-start=\"1333\" data-end=\"1399\"\u003e\u003cstrong\u003e- \u003c\/strong\u003eIdeal for research-grade IR detectors and space science projects\u003c\/p\u003e\n\u003cp data-start=\"1401\" data-end=\"1425\"\u003e\u003cstrong data-start=\"1401\" data-end=\"1423\"\u003eThermal Stability:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"1428\" data-end=\"1554\"\u003e\u003cstrong\u003e- \u003c\/strong\u003eFused silica optics paired with carbon fiber structure minimize expansion for consistent imaging in fluctuating temperatures\u003c\/p\u003e\n\u003cp data-start=\"1556\" data-end=\"1582\"\u003e\u003cstrong data-start=\"1556\" data-end=\"1580\"\u003eWide Field Coverage:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"1585\" data-end=\"1637\"\u003e\u003cstrong\u003e- \u003c\/strong\u003e70mm image circle supports large-format IR sensors\u003c\/p\u003e\n\u003cp data-start=\"1640\" data-end=\"1697\"\u003e\u003cstrong\u003e- \u003c\/strong\u003eDelivers flat, coma-free fields with minimal distortion\u003c\/p\u003e","brand":"PlaneWave Instruments","offers":[{"title":"Default Title","offer_id":49937788797216,"sku":"240120Q","price":83000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/2135\/2480\/files\/image_2025-09-16_101412843.png?v=1758042852","url":"https:\/\/firstlightastro.com\/products\/irdk24-telescope","provider":"First Light Astro","version":"1.0","type":"link"}