{"product_id":"cdk20-corrector-lens-assembly","title":"PlaneWave CDK20 Corrector Lens Assembly","description":"\u003ch3 data-start=\"134\" data-end=\"193\"\u003e\u003cstrong data-start=\"138\" data-end=\"193\"\u003ePlaneWave CDK20 Lens Group – Convert f\/7.7 to f\/6.8\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"195\" data-end=\"453\"\u003eThis optional lens group is designed to convert a CDK20 from f\/7.7 to a wider-field f\/6.8 configuration. The process involves simply unscrewing the existing rear lens group from the backplate of the optical tube and replacing it with this alternate lens set.\u003c\/p\u003e\n\u003cp data-start=\"455\" data-end=\"651\"\u003e\u003cstrong data-start=\"455\" data-end=\"477\"\u003eKey Specifications\u003c\/strong\u003e\u003cbr data-start=\"477\" data-end=\"480\"\u003e\u003cstrong data-start=\"480\" data-end=\"507\"\u003eOriginal Configuration:\u003c\/strong\u003e CDK20 f\/7.77\u003cbr data-start=\"520\" data-end=\"523\"\u003e\u003cstrong data-start=\"523\" data-end=\"551\"\u003eConverted Configuration:\u003c\/strong\u003e CDK20 f\/6.8\u003cbr data-start=\"563\" data-end=\"566\"\u003e\u003cstrong data-start=\"566\" data-end=\"593\"\u003eFocal Length Reduction:\u003c\/strong\u003e 3951mm → 3454mm\u003cbr data-start=\"609\" data-end=\"612\"\u003e\u003cstrong data-start=\"612\" data-end=\"637\"\u003eBack Focus Reduction:\u003c\/strong\u003e 1.79\" removed\u003c\/p\u003e\n\u003cp data-start=\"653\" data-end=\"981\"\u003e\u003cstrong data-start=\"653\" data-end=\"683\"\u003ePerformance \u0026amp; Applications\u003c\/strong\u003e\u003cbr data-start=\"683\" data-end=\"686\"\u003e\u003cstrong data-start=\"686\" data-end=\"712\"\u003e- Wider Field Imaging:\u003c\/strong\u003e Ideal for users who need a broader field of view for large-format sensors\u003cbr data-start=\"786\" data-end=\"789\"\u003e\u003cstrong data-start=\"789\" data-end=\"813\"\u003e- Easy Installation:\u003c\/strong\u003e Quick lens group swap with no need for re-collimation\u003cbr data-start=\"867\" data-end=\"870\"\u003e\u003cstrong data-start=\"870\" data-end=\"903\"\u003e- Flexible System Adaptation:\u003c\/strong\u003e Provides the versatility to optimize focal length for different imaging goals\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOR\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"983\" data-end=\"986\"\u003e\n\u003ch3 data-start=\"988\" data-end=\"1047\"\u003e\u003cstrong data-start=\"992\" data-end=\"1047\"\u003ePlaneWave CDK20 Lens Group – Convert f\/6.8 to f\/7.7\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1049\" data-end=\"1259\"\u003eThis accessory lens group is designed to convert a CDK20 telescope from f\/6.8 to a narrower-field f\/7.7 configuration. Simply unscrew the current rear lens group and install this assembly onto the optical tube.\u003c\/p\u003e\n\u003cp data-start=\"1261\" data-end=\"1452\"\u003e\u003cstrong data-start=\"1261\" data-end=\"1283\"\u003eKey Specifications\u003c\/strong\u003e\u003cbr data-start=\"1283\" data-end=\"1286\"\u003e\u003cstrong data-start=\"1286\" data-end=\"1313\"\u003eOriginal Configuration:\u003c\/strong\u003e CDK20 f\/6.8\u003cbr data-start=\"1325\" data-end=\"1328\"\u003e\u003cstrong data-start=\"1328\" data-end=\"1356\"\u003eConverted Configuration:\u003c\/strong\u003e CDK20 f\/7.77\u003cbr data-start=\"1369\" data-end=\"1372\"\u003e\u003cstrong data-start=\"1372\" data-end=\"1398\"\u003eFocal Length Increase:\u003c\/strong\u003e 3454mm → 3951mm\u003cbr data-start=\"1414\" data-end=\"1417\"\u003e\u003cstrong data-start=\"1417\" data-end=\"1441\"\u003eBack Focus Increase:\u003c\/strong\u003e Adds 1.79\"\u003c\/p\u003e\n\u003cp data-start=\"1454\" data-end=\"1787\"\u003e\u003cstrong data-start=\"1454\" data-end=\"1484\"\u003ePerformance \u0026amp; Applications\u003c\/strong\u003e\u003cbr data-start=\"1484\" data-end=\"1487\"\u003e\u003cstrong data-start=\"1487\" data-end=\"1514\"\u003e- Increased Back Focus:\u003c\/strong\u003e Adds valuable space in the imaging train for filter wheels, rotators, and other accessories\u003cbr data-start=\"1606\" data-end=\"1609\"\u003e\u003cstrong data-start=\"1609\" data-end=\"1636\"\u003e- Higher Magnification:\u003c\/strong\u003e Useful for targets requiring tighter framing or increased scale\u003cbr data-start=\"1700\" data-end=\"1703\"\u003e\u003cstrong data-start=\"1703\" data-end=\"1724\"\u003e- Modular Design:\u003c\/strong\u003e Allows your CDK20 system to adapt as your imaging needs evolve\u003c\/p\u003e","brand":"PlaneWave Instruments","offers":[{"title":"From F\/7.77 to F\/6.8","offer_id":49937793909024,"sku":"200204","price":1600.0,"currency_code":"USD","in_stock":true},{"title":"From F\/6.8 to F\/7.77","offer_id":49937793941792,"sku":"2002010","price":1600.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/2135\/2480\/files\/CDK20-f7.77-lens-group-png-e1614983051338.png?v=1745882160","url":"https:\/\/firstlightastro.com\/products\/cdk20-corrector-lens-assembly","provider":"First Light Astro","version":"1.0","type":"link"}