{"product_id":"reducer-0-66x-cdk12-5-24","title":"PlaneWave Lens Reducer, 0.66X","description":"\u003ch3 data-start=\"154\" data-end=\"210\"\u003e\u003cstrong data-start=\"158\" data-end=\"210\"\u003ePlaneWave 0.66x Focal Reducer for CDK Telescopes\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"212\" data-end=\"595\"\u003eDesigned specifically for flat-field astrographs like the PlaneWave CDK series, this 0.66x focal reducer decreases the f\/ratio of compatible CDK telescopes—significantly shortening exposure times and expanding the field of view. Ideal for wide-field astrophotography, the reducer delivers a 30mm fully illuminated image circle, ensuring sharp performance across large sensor formats.\u003c\/p\u003e\n\u003cp data-start=\"597\" data-end=\"698\"\u003e\u003cstrong data-start=\"597\" data-end=\"628\"\u003ePerformance Transformations\u003c\/strong\u003e\u003cbr data-start=\"628\" data-end=\"631\"\u003eWhen installed, the reducer modifies your CDK telescope as follows:\u003c\/p\u003e\n\u003cp data-start=\"700\" data-end=\"952\"\u003e\u003cstrong data-start=\"700\" data-end=\"719\"\u003e- CDK12.5 (f\/8)\u003c\/strong\u003e → f\/5.3, \u003cstrong data-start=\"729\" data-end=\"748\"\u003e47mm back focus\u003c\/strong\u003e\u003cbr data-start=\"748\" data-end=\"751\"\u003e\u003cstrong data-start=\"751\" data-end=\"770\"\u003e- CDK14 (f\/7.2)\u003c\/strong\u003e → f\/4.8, \u003cstrong data-start=\"780\" data-end=\"799\"\u003e44mm back focus\u003c\/strong\u003e\u003cbr data-start=\"799\" data-end=\"802\"\u003e\u003cstrong data-start=\"802\" data-end=\"821\"\u003e- CDK17 (f\/6.8)\u003c\/strong\u003e → f\/4.5, \u003cstrong data-start=\"831\" data-end=\"850\"\u003e47mm back focus\u003c\/strong\u003e\u003cbr data-start=\"850\" data-end=\"853\"\u003e\u003cstrong data-start=\"853\" data-end=\"872\"\u003e- CDK20 (f\/6.8)\u003c\/strong\u003e → f\/4.5, \u003cstrong data-start=\"882\" data-end=\"901\"\u003e47mm back focus\u003c\/strong\u003e\u003cbr data-start=\"901\" data-end=\"904\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"904\" data-end=\"923\"\u003e- CDK24 (f\/6.5)\u003c\/strong\u003e → f\/4.3, \u003cstrong data-start=\"933\" data-end=\"952\"\u003e47mm back focus\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"954\" data-end=\"1256\"\u003e\u003cstrong data-start=\"954\" data-end=\"977\"\u003eCompatibility Notes\u003c\/strong\u003e\u003cbr data-start=\"977\" data-end=\"980\"\u003e\u003cstrong data-start=\"980\" data-end=\"985\"\u003e-\u003c\/strong\u003e This reducer is compatible with CDK17 models that have an \u003cstrong data-start=\"1044\" data-end=\"1064\"\u003e8.81″ back focus\u003c\/strong\u003e using \u003cstrong data-start=\"1071\" data-end=\"1090\"\u003eAdapter #125166\u003c\/strong\u003e\u003cbr data-start=\"1090\" data-end=\"1093\"\u003e\u003cstrong data-start=\"1093\" data-end=\"1098\"\u003e-\u003c\/strong\u003e CDK17 models with \u003cstrong data-start=\"1117\" data-end=\"1138\"\u003e10.24″ back focus\u003c\/strong\u003e will require \u003cstrong data-start=\"1152\" data-end=\"1171\"\u003eAdapter #200166\u003c\/strong\u003e\u003cbr data-start=\"1171\" data-end=\"1174\"\u003e\u003cstrong data-start=\"1174\" data-end=\"1179\"\u003e-\u003c\/strong\u003e See the instruction manual for installation details and spacing requirements\u003c\/p\u003e\n\u003cp data-start=\"1258\" data-end=\"1558\"\u003e\u003cstrong data-start=\"1258\" data-end=\"1274\"\u003eApplications\u003c\/strong\u003e\u003cbr data-start=\"1274\" data-end=\"1277\"\u003e\u003cstrong data-start=\"1277\" data-end=\"1298\"\u003e- Faster Imaging:\u003c\/strong\u003e Reduce exposure time with faster focal ratios\u003cbr data-start=\"1344\" data-end=\"1347\"\u003e\u003cstrong data-start=\"1347\" data-end=\"1376\"\u003e- Wide Field Performance:\u003c\/strong\u003e Capture larger deep-sky targets with a 30mm illuminated field\u003cbr data-start=\"1438\" data-end=\"1441\"\u003e\u003cstrong data-start=\"1441\" data-end=\"1471\"\u003e- Flat Field Optimization:\u003c\/strong\u003e Engineered for the CDK optical design to maintain a coma- and astigmatism-free image\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"PlaneWave Instruments","offers":[{"title":"CDK12.5\/14\/17","offer_id":49937793843488,"sku":"125166","price":1600.0,"currency_code":"USD","in_stock":true},{"title":"CDK20 \u0026 CDK24","offer_id":49937793876256,"sku":"200166","price":1600.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/2135\/2480\/files\/125166.jpg?v=1745882443","url":"https:\/\/firstlightastro.com\/products\/reducer-0-66x-cdk12-5-24","provider":"First Light Astro","version":"1.0","type":"link"}