{"product_id":"planewave-cdk20-astrograph-f-6-8-200104q","title":"PlaneWave CDK20 Astrograph f\/6.8 (200104Q)","description":"\u003ch2\u003ePlaneWave CDK20 Astrograph f\/6.8\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eThe CDK20 is an innovative telescope for unsurpassed astroimaging, research, or satellite tracking.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cem\u003e\u003cstrong\u003ef\/6.8 and 3454 mm focal length.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003e\u003cstrong\u003eNo coma, no off-axis astigmatism, and no field curvature.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003e\u003cstrong\u003ePinpoint stars across a 52 mm image circle.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003e\u003cstrong\u003eRock solid fused silica mirrors with low thermal expansion.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003e\u003cstrong\u003eCarbon fiber optical tube assembly for rigidity and fast cooling.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003e\u003cstrong\u003eSimple secondary mirror collimation thanks to the fixed primary mirror.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eCapturing the most stunning astrophotographs possible is something our team is passionate about. From design to manufacture, our goal with the Corrected Dall-Kirkham (CDK) 20″ telescope was centered around performance and ease of use. The CDK20 is an incredible breakthrough in telescope technology and produces no off-axis coma and no off-axis astigmatism. Additionally, the CDK20 provides a perfectly flat field so your astrophotographs will have stunning clarity from corner to corner of the image without field curvature degrading the photos. Offering the simplicity of single-mirror collimation, the stray light control of advanced baffles, structural performance created through finite element analysis (FEA), and decades of telescope design experience, the CDK20 is an exceptional diffraction-limited telescope. CDK20 users can experience pinpoint stars edge-to-edge and a 52 x 52 arcminute field of view when using large 16803 size camera sensors. When equipment fades into the background and simply performs, the astrophotography experience becomes even more fun and rewarding!\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv class=\"block-feature col-sm-12\"\u003e\n\u003cp\u003e\u003cstrong\u003eCarbon Fiber Truss Design\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"col-md-3 image\" style=\"text-align: left;\" data-mce-style=\"text-align: left;\"\u003e\u003cimg data-ll-status=\"loaded\" class=\"lazyloaded\" alt=\"Icon\" src=\"https:\/\/planewave.com\/wp-content\/uploads\/2018\/02\/CF-truss-295x200.jpg\" style=\"float: left;\" data-mce-style=\"float: left;\" data-mce-src=\"https:\/\/planewave.com\/wp-content\/uploads\/2018\/02\/CF-truss-295x200.jpg\" width=\"196\" height=\"133\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"col-md-9 col_content\"\u003e\n\u003cp\u003eMinimizes thermal expansion which causes focus shift as temperature changes during an imaging session. Carbon fiber also reaches ambient temperatures quickly and is extremely lightweight and rigid to help ensure excellent imaging data is produced.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"block-feature col-sm-12\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3D Printed Baffles\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"col-md-3 image\" style=\"text-align: left;\" data-mce-style=\"text-align: left;\"\u003e\u003cimg data-ll-status=\"loaded\" class=\"lazyloaded\" alt=\"Icon\" src=\"https:\/\/planewave.com\/wp-content\/uploads\/2018\/02\/CDK14-baffle-2.jpg\" style=\"float: left;\" data-mce-style=\"float: left;\" data-mce-src=\"https:\/\/planewave.com\/wp-content\/uploads\/2018\/02\/CDK14-baffle-2.jpg\" width=\"209\" height=\"199\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"col-md-9 col_content\"\u003e\n\u003cp\u003ePlaneWave uses digital 3D printing technology to produce lightweight baffle tubes. 3D printers add successive layers of material to construct a baffle system with precision positioned internal stray light baffles to minimize vignetting and maximize image contrast. Quality baffling makes an incredible difference in overall image quality, so we ensured an optimal design was created for our telescopes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"block-feature col-sm-12\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDovetail Expansion Joint\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"col-md-3 image\" style=\"text-align: left;\" data-mce-style=\"text-align: left;\"\u003e\u003cimg data-ll-status=\"loaded\" class=\"lazyloaded\" alt=\"Icon\" src=\"https:\/\/planewave.com\/wp-content\/uploads\/2018\/02\/expansion-joint-295x200.jpg\" style=\"float: left;\" data-mce-style=\"float: left;\" data-mce-src=\"https:\/\/planewave.com\/wp-content\/uploads\/2018\/02\/expansion-joint-295x200.jpg\" width=\"237\" height=\"161\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"col-md-9 col_content\"\u003e\n\u003cp\u003eAllows for the difference in thermal expansion between carbon fiber and aluminum. The expansion joint allows the aluminum dovetail to expand and contract without stressing the carbon fiber lower truss. This results in images that are not distorted due to expansion, or contraction of the optical tube materials.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"block-feature col-sm-12\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDelta-T Ready\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"col-md-3 image\" style=\"text-align: left;\" data-mce-style=\"text-align: left;\"\u003e\u003cimg data-ll-status=\"loaded\" class=\"lazyloaded\" alt=\"Icon\" src=\"https:\/\/planewave.com\/wp-content\/uploads\/2018\/02\/heat-pad-295x200.jpg\" style=\"float: left;\" data-mce-style=\"float: left;\" data-mce-src=\"https:\/\/planewave.com\/wp-content\/uploads\/2018\/02\/heat-pad-295x200.jpg\" width=\"233\" height=\"158\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"col-md-9 col_content\"\u003e\n\u003cp\u003eFor added dew prevention, the CDK20 is internally wired with polyimide film heater pads and temperature sensor, which is ready to be controlled with the Delta-T via PlaneWave Interface 3 software.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"block-feature col-sm-12\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCooling Fans\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"col-md-3 image\" style=\"text-align: left;\" data-mce-style=\"text-align: left;\"\u003e\u003cimg data-ll-status=\"loaded\" class=\"lazyloaded\" alt=\"Icon\" src=\"https:\/\/planewave.com\/wp-content\/uploads\/2018\/02\/CDK17-fan-1.jpg\" style=\"float: left;\" data-mce-style=\"float: left;\" data-mce-src=\"https:\/\/planewave.com\/wp-content\/uploads\/2018\/02\/CDK17-fan-1.jpg\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"col-md-9 col_content\"\u003e\n\u003cp\u003eThree fans on the backplate of the optical tube pull air through the telescope and by the primary mirror. Three fans on the side of the optical tube also blow air across the primary to ensure a boundary layer of air does not distort images. These fans help the telescope reach thermal equilibrium quickly, further reducing any distortion in images due to temperature variations. The fans are controlled by a switch on the optical tube, or can be controlled by via PWI3 software if a PlaneWave Electronic Focus Accessory (EFA Kit) is purchased.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ch4\u003e\u003cspan\u003e\u003cstrong\u003eOptical System\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h4\u003e\n\u003ctable cellpadding=\"1\" border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"40%\"\u003eAperture\u003c\/td\u003e\n\u003ctd\u003e20 inch (508 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"40%\"\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e3454 mm (136 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"40%\"\u003eFocal ratio\u003c\/td\u003e\n\u003ctd\u003eF\/6.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"40%\"\u003eCentral Obstruction\u003c\/td\u003e\n\u003ctd\u003e39% of the Primary Mirror Diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"40%\"\u003eBack Focus from mounting surface\u003c\/td\u003e\n\u003ctd\u003e8.81 inch (224 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"40%\"\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e140 lbs (63.5 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"40%\"\u003eOTA Length\u003c\/td\u003e\n\u003ctd\u003e47 inch (1,194 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"40%\"\u003eUpper Cage\u003c\/td\u003e\n\u003ctd\u003eCarbon fiber truss\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"40%\"\u003eLower Cage\u003c\/td\u003e\n\u003ctd\u003eCarbon fiber truss with carbon fiber light shroud\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"40%\"\u003eOptimal Field of View\u003c\/td\u003e\n\u003ctd\u003e52mm image circle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003e\u003cstrong\u003eSecondary Mirror\u003c\/strong\u003e\u003c\/h4\u003e\n\u003ctable cellpadding=\"1\" border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"40%\"\u003eDiameter\u003c\/td\u003e\n\u003ctd\u003e7.5 inch (191mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"40%\"\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eFused silica (quartz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"40%\"\u003eShape\u003c\/td\u003e\n\u003ctd\u003eSpherical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"40%\"\u003eCoating\u003c\/td\u003e\n\u003ctd\u003eEnhanced Aluminum – 96%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003e\u003cstrong\u003ePrimary Mirror\u003c\/strong\u003e\u003c\/h4\u003e\n\u003ctable cellpadding=\"1\" border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"40%\"\u003eOptical Diameter\u003c\/td\u003e\n\u003ctd\u003e20 inch (508 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"40%\"\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e20.5 inch (521 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"40%\"\u003eShape\u003c\/td\u003e\n\u003ctd\u003eProlate ellipsoid\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"40%\"\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eFused silica (quartz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"40%\"\u003eCoating\u003c\/td\u003e\n\u003ctd\u003eEnhanced aluminum – 96%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003e\u003cstrong\u003e\u003cspan\u003eLens Group\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h4\u003e\n\u003ctable cellpadding=\"1\" border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"40%\"\u003eDiameter\u003c\/td\u003e\n\u003ctd\u003e90 mm (3.54 inch)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"40%\"\u003eNumber of lenses\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"40%\"\u003eCoating\u003c\/td\u003e\n\u003ctd\u003eBroadband AR Coatings (less than .5% reflected from 400 to 700nm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"left\"\u003eOptical Diameter\u003c\/td\u003e\n\u003ctd class=\"right\"\u003e20 inch (508 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003e\u003cstrong\u003e\u003cspan\u003eStandard Features\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h4\u003e\n\u003ctable cellspacing=\"3\" cellpadding=\"0\" border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"227\"\u003eCarbon Fiber Truss Design\u003c\/td\u003e\n\u003ctd width=\"713\"\u003eMinimizes thermal expansion which causes focus shift with changes in temperature\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"227\"\u003eDovetail Expansion Joint\u003c\/td\u003e\n\u003ctd width=\"713\"\u003eAllows for the difference in thermal expansion between carbon fiber and aluminum. The expansion joint allows the aluminum dovetail expand and contract without stressing the carbon fiber lower truss\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"227\"\u003eCooling Fans\u003c\/td\u003e\n\u003ctd width=\"713\"\u003eThree cooling fans ejecting air from the back of the telescope and four fans blowing across the boundary layer of the mirror surface. This helps the telescope to reach thermal equilibrium quickly. The fans are controlled by a computer if the optional Electronic Focus Accessory (EFA Kit) is purchased.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003e\u003cspan\u003e\u003cstrong\u003eShipping\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h4\u003e\n\u003ctable cellspacing=\"3\" cellpadding=\"0\" border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"227\"\u003eCrated Shipping Weight\u003c\/td\u003e\n\u003ctd width=\"713\"\u003e291 lbs   (132.0 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"227\"\u003eCrate Width\u003c\/td\u003e\n\u003ctd width=\"713\"\u003e33 inch   (838 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"227\"\u003eCrate Height\u003c\/td\u003e\n\u003ctd width=\"713\"\u003e33 inch   (838 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"227\"\u003eCrate Length\u003c\/td\u003e\n\u003ctd width=\"713\"\u003e65 inch   (1,651 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003e\u003cstrong\u003e\u003cspan\u003eIncluded Accessories\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h4\u003e\n\u003ctable cellspacing=\"3\" cellpadding=\"0\" border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"227\"\u003ePrimary Mirror Cover\u003c\/td\u003e\n\u003ctd width=\"713\"\u003eTo protect the primary mirror\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"227\"\u003ePlaneWave Thumb Drive\u003c\/td\u003e\n\u003ctd width=\"713\"\u003eContains software and instructions for collimation and spacing the primary to secondary mirror\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"227\"\u003e12VDC Power Supply\u003c\/td\u003e\n\u003ctd width=\"713\"\u003eProvides power for the fans (Not included for European Orders)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"227\"\u003eWrench Set\u003cbr\u003e(5812A35)\u003c\/td\u003e\n\u003ctd width=\"713\"\u003eStandard hex wrenches (European orders only)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eIn The Box\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable width=\"848\" cellpadding=\"1\" border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"40%\"\u003eHeating elements for dew prevention\u003c\/td\u003e\n\u003ctd\u003eThe heating pads on the primary and secondary mirror require the 600195 Delta-T controller sold separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"40%\"\u003eOTA Cover\u003c\/td\u003e\n\u003ctd\u003eTo protect the primary mirror and inside of the optical tube\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"40%\"\u003eFlashdrive\u003c\/td\u003e\n\u003ctd\u003eContains software and instructions for collimation and spacing the primary to secondary mirror\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"40%\"\u003eWrench Set (5812A35)\u003c\/td\u003e\n\u003ctd\u003eStandard hex wrenches (European orders only)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\" mce-data-marked=\"1\"\u003eManuals \u0026amp; Warranty\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\" mce-data-marked=\"1\"\u003e\u003ca href=\"https:\/\/istronomyplus.com\/pages\/planewave-warranty\" target=\"_blank\"\u003ePlanewave Warranty (\u003cspan data-mce-fragment=\"1\"\u003eone year for optical coatings and two years mechanics and electronics from the date of delivery)\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2 class=\"yikes-custom-woo-tab-title yikes-custom-woo-tab-title-downloads\"\u003eDownloads\u003c\/h2\u003e\n\u003ch4\u003e\u003cstrong\u003eArticles\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/planewave.com\/download\/astronomy-technology-today-the-planewave-instruments-cdk\/\" target=\"_blank\"\u003eAstronomy Technology Today: The PlaneWave Instruments CDK\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eDrawings \u0026amp; Diagrams\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/planewave.com\/download\/cdk20-overall-dimensions\/\" target=\"_blank\"\u003eCDK20 Optical Tube\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/planewave.com\/download\/cdk20-vignetting-and-spot-size-plots\/\" target=\"_blank\"\u003eCDK20 Vignetting and Spot Size Plots\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/planewave.com\/download\/cdk20-piggyback-dovetail-plate-diagram-200990\/\" target=\"_blank\"\u003eCDK20 Piggyback Dovetail Plate Diagram\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eCamera Adapters Diagrams\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/planewave.com\/download\/cdk2024-to-apogee-adapters\/\" title=\"Version downloaded 1961 times\" target=\"_blank\"\u003eCDK20 IRF90 to Apogee Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/planewave.com\/download\/cdk2024-irf90-to-sbig-stx-adapters\/\" title=\"Version downloaded 2299 times\" target=\"_blank\"\u003eCDK20 IRF90 to SBIG STX Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/planewave.com\/download\/cdk2024-to-apogee-adapters\/\" title=\"Version downloaded 2230 times\" target=\"_blank\"\u003eCDK20 to Apogee Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/planewave.com\/download\/cdk2024-to-fli-adapters\/\" title=\"Version downloaded 2113 times\" target=\"_blank\"\u003eCDK20 to FLI Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/planewave.com\/download\/cdk2024-to-sbig-adapters\/\" title=\"Version downloaded 2761 times\" target=\"_blank\"\u003eCDK20 to SBIG Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eSoftware\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/planewave.com\/download\/delta-t-firmware-update\/?wpdmdl=971\u0026amp;refresh=600710a6f34141611075750\" target=\"_blank\"\u003eDelta-T Firmware Update (firmware 1.0.13219 and 2.1.16054)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eInstructions\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/planewave.com\/download\/collimation-and-spacing-instructions-for-cdk12-5-14-17-20-and-24\/\" target=\"_blank\"\u003eCollimation and Spacing Instructions for CDK12.5, 14, 17, 20, and 24\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/planewave.com\/download\/cleaning-optics-cdk14172024\/\" target=\"_blank\"\u003eCleaning Optics CDK14\/17\/20\/24\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eHelpful Tools\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/planewave.com\/download\/pier-height-calculator\/\" target=\"_blank\"\u003ePier Height Calculator\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Planewave","offers":[{"title":"Default Title","offer_id":43133322166501,"sku":"PW-200104Q","price":55380.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/planewave-cdk20-astrograph-f6-8-200104q-astronomy-plus-1.webp?v=1690485422","url":"https:\/\/istronomyplus.com\/products\/planewave-cdk20-astrograph-f-6-8-200104q","provider":"Astronomy Plus – Telescopes \u0026 Astrophotography Canada","version":"1.0","type":"link"}