{"product_id":"planewave-cdk24-optical-tube-assembly-240104q","title":"PlaneWave CDK24 Optical Tube Assembly (240104Q)","description":"\u003ch2\u003ePlaneWave CDK24 Optical Tube Assembly \u003c\/h2\u003e\n\u003cp\u003eThe CDK24 is an innovative telescope for unsurpassed astroimaging, research, or satellite tracking.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cem\u003ef\u003c\/em\u003e\/6.5 and 3974mm focal length.\u003c\/li\u003e\n\u003cli\u003eNo coma, no off-axis astigmatism, and no field curvature.\u003c\/li\u003e\n\u003cli\u003ePinpoint stars across a 70mm image circle.\u003c\/li\u003e\n\u003cli\u003eRock solid fused silica mirrors with low thermal expansion.\u003c\/li\u003e\n\u003cli\u003eCarbon fiber optical tube assembly for rigidity and fast cooling.\u003c\/li\u003e\n\u003cli\u003eSimple secondary mirror collimation thanks to the fixed primary mirror.\u003c\/li\u003e\n\u003cli\u003eBright, crisp, views for visual observing and star parties.\u003c\/li\u003e\n\u003c\/ul\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) 24″ telescope was centered around performance and ease of use. The CDK24 is an incredible breakthrough in telescope technology and produces no off-axis coma and no off-axis astigmatism. Additionally, the CDK24 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.\u003c\/p\u003e\n\u003cp\u003eOffering 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 CDK24 is an exceptional diffraction-limited telescope. CDK24 users can experience pinpoint stars edge-to-edge and a 45 x 45 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\u003ch2\u003eCDK24 Features\u003c\/h2\u003e\n\u003ch4\u003eFused Silica Optics\u003c\/h4\u003e\n\u003ch4\u003e\u003cimg src=\"https:\/\/planewave.com\/wp-content\/uploads\/2018\/02\/mirror.jpg\"\u003e\u003c\/h4\u003e\n\u003cp\u003eFused silica (quartz) has a coefficient of thermal expansion six times lower than Borosilicate (Pyrex) glass, which means that as it cools down, fused silica preserves its shape to a high degree of accuracy. This translates into consistent optical performance and unchanging focus as temperature changes.\u003c\/p\u003e\n\u003ch4\u003eDelta-T Ready\u003c\/h4\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/planewave.com\/wp-content\/uploads\/2018\/02\/heat-pad-295x200.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003eFor added dew prevention, the CDK24 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\u003ch4\u003eCarbon Fiber Truss Design\u003c\/h4\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/planewave.com\/wp-content\/uploads\/2018\/02\/CDK24-1024x593.jpg\"\u003e\u003c\/p\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\u003ch4\u003e3D Printed Baffles\u003c\/h4\u003e\n\u003ch4\u003e\u003cimg src=\"https:\/\/planewave.com\/wp-content\/uploads\/2018\/02\/CDK14-baffle-295x200.jpg\"\u003e\u003c\/h4\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\u003ch4\u003eCooling Fan\u003c\/h4\u003e\n\u003ch3\u003e\u003cimg src=\"https:\/\/planewave.com\/wp-content\/uploads\/2018\/02\/cdk24_side.jpg\"\u003e\u003c\/h3\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\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ch4\u003e\u003cstrong\u003eOptical System\u003c\/strong\u003e\u003c\/h4\u003e\n\u003ctable width=\"684\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"342\"\u003eAperture\u003c\/td\u003e\n\u003ctd width=\"342\"\u003e24 inch (610 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e3974 mm (156.46 inch)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal ratio\u003c\/td\u003e\n\u003ctd\u003eF\/6.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCentral Obstruction\u003c\/td\u003e\n\u003ctd\u003e47% of the primary mirror diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBack Focus from Mounting Surface\u003c\/td\u003e\n\u003ctd\u003e14.349 inch (364.46 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e240 lbs (108.9 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOTA Length\u003c\/td\u003e\n\u003ctd\u003e56 inch (1,422 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUpper Cage\u003c\/td\u003e\n\u003ctd\u003eCarbon fiber truss\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLower Cage\u003c\/td\u003e\n\u003ctd\u003eCarbon fiber truss with aluminum light shroud\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOTA Width\u003c\/td\u003e\n\u003ctd\u003e31 inch (787 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOTA Height\u003c\/td\u003e\n\u003ctd\u003e35 inch (889 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptimal Field of View\u003c\/td\u003e\n\u003ctd\u003e70 mm image circle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch4\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eSecondary Mirror\u003c\/strong\u003e\n\u003c\/h4\u003e\n\u003ctable width=\"366\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"183\"\u003eDiameter\u003c\/td\u003e\n\u003ctd width=\"183\"\u003e11 inch (280 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eFused silica (quartz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShape\u003c\/td\u003e\n\u003ctd\u003eSpherical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\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\u003ch3\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch4\u003e\u003cstrong\u003ePrimary Mirror\u003c\/strong\u003e\u003c\/h4\u003e\n\u003ctable width=\"366\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"183\"\u003eOptical Diameter\u003c\/td\u003e\n\u003ctd width=\"183\"\u003e24 inch (610 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e24.5 inch (622 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShape\u003c\/td\u003e\n\u003ctd\u003eProlate Ellipsoid\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eFused silica (quartz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\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\u003ch3\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch4\u003e\u003cstrong\u003eLens Group\u003c\/strong\u003e\u003c\/h4\u003e\n\u003ctable border=\"1\" cellpadding=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"40%\"\u003eDiameter\u003c\/td\u003e\n\u003ctd\u003e135 mm (5.31 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\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eShipping Crate\u003c\/h4\u003e\n\u003ctable width=\"366\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"183\"\u003eCrated Shipping Weight\u003c\/td\u003e\n\u003ctd width=\"183\"\u003e500 lbs   (226.8 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCrate Width\u003c\/td\u003e\n\u003ctd\u003e40 inch   (1,016 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCrate Height\u003c\/td\u003e\n\u003ctd\u003e48 inch   (1,219 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCrate Length\u003c\/td\u003e\n\u003ctd\u003e78 inch   (1,981 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003ctable width=\"624\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"228\"\u003eCDK24 Focus Spacer (240343-1)\u003c\/td\u003e\n\u003ctd width=\"396\"\u003eThis 5.539″ long spacer is installed between the backplate and the focuser to take up some of the CDK24’s extra backfocus and reduce the torque placed on the focuser mechanism. This spacer is sized such that the backfocus distance behind the focuser is 8.8″.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Mirror Cover\u003c\/td\u003e\n\u003ctd\u003eTo protect the primary mirror\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePlaneWave Thumb Drive\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\u003e12VDC Power Supply\u003c\/td\u003e\n\u003ctd\u003eProvides power for the fans (Not included for European orders)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\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\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eManuals \u0026amp; Warranty\u003c\/h3\u003e\n\u003ch4\u003e\u003ca title=\"null\" href=\"https:\/\/istronomyplus.com\/pages\/planewave-warranty\" target=\"_blank\"\u003ePlanewave Warranty (One year for optical coatings and Two years mechanics and electronics from the date of delivery)\u003c\/a\u003e\u003c\/h4\u003e\n\u003ch4\u003eDownloads\u003c\/h4\u003e\n\u003ch5\u003eDrawings \u0026amp; Diagrams\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca title=\"null\" href=\"https:\/\/planewave.com\/download\/cdk24-overall-dimensions\/\" target=\"null\"\u003eCDK24 Optical Tube Dimensions\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca title=\"null\" href=\"https:\/\/planewave.com\/download\/cdk24-vignetting-and-spot-size-plots\/\" target=\"null\"\u003eCDK24 Vignetting and Spot Size Plots\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003ca title=\"null\" href=\"https:\/\/planewave.com\/download\/cdk24-piggyback-dovetail-plate-diagram-240990\/\" target=\"null\"\u003eCDK24 Piggyback Dovetail Plate Diagra\u003c\/a\u003em\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eCamera adapters Diagram\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca title=\"Version downloaded 1961 times\" href=\"https:\/\/planewave.com\/download\/cdk2024-to-apogee-adapters\/\" target=\"null\"\u003eCDK24 IRF90 to Apogee Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca title=\"Version downloaded 2299 times\" href=\"https:\/\/planewave.com\/download\/cdk2024-irf90-to-sbig-stx-adapters\/\" target=\"null\"\u003eCDK24 IRF90 to SBIG STX Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca title=\"Version downloaded 2230 times\" href=\"https:\/\/planewave.com\/download\/cdk2024-to-apogee-adapters\/\" target=\"null\"\u003eCDK24 to Apogee Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca title=\"Version downloaded 2113 times\" href=\"https:\/\/planewave.com\/download\/cdk2024-to-fli-adapters\/\" target=\"null\"\u003eCDK24 to FLI Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca title=\"Version downloaded 2761 times\" href=\"https:\/\/planewave.com\/download\/cdk2024-to-sbig-adapters\/\" target=\"null\"\u003eCDK24 to SBIG Adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eSoftware\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca title=\"null\" href=\"https:\/\/planewave.com\/download\/delta-t-firmware-update\/?wpdmdl=971\u0026amp;refresh=600710a6f34141611075750\" target=\"null\"\u003eDelta-T Firmware Update (firmware 1.0.13219 and 2.1.16054)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eInstructions\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca title=\"null\" href=\"https:\/\/planewave.com\/download\/collimation-and-spacing-instructions-for-cdk12-5-14-17-20-and-24\/\" target=\"null\"\u003eCollimation and Spacing Instructions for CDK12.5, 14, 17, 20, and 24\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca title=\"null\" href=\"https:\/\/planewave.com\/download\/cleaning-optics-cdk14172024\/\" target=\"null\"\u003eCleaning Optics CDK14\/17\/20\/24\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eHelpful Tools\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca title=\"null\" href=\"https:\/\/planewave.com\/download\/pier-height-calculator\/\" target=\"null\"\u003ePier Height Calculator\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Planewave","offers":[{"title":"Default Title","offer_id":44356330094821,"sku":"PW-240104Q","price":103660.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/planewave-cdk24-optical-tube-assembly-240104q-astronomy-plus.png?v=1715808587","url":"https:\/\/istronomyplus.com\/products\/planewave-cdk24-optical-tube-assembly-240104q","provider":"Astronomy Plus – Telescopes \u0026 Astrophotography Canada","version":"1.0","type":"link"}