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The PlaneWave Instruments CDK14 Corrected Dall-Kirkham is an innovative telescope for unsurpassed astroimaging, research, or satellite tracking. With rock-solid fused silica mirrors, carbon fibre construction and pinpoint stars across a 70mm image circle, the CDK14 is the capable of capturing the most stunning astrophotographs possible.
The CDK14 is an incredible breakthrough in telescope technology and produces no off-axis coma and no off-axis astigmatism. Additionally, the CDK14 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 CDK14 is an exceptional diffraction-limited telescope.
CDK14 users can experience pinpoint stars edge-to-edge and a 70 x 70 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!
Features
- Carbon fibre tube minimizes thermal expansion, which causes focus shift as temperature changes during an imaging session. Carbon fibre also reaches ambient temperatures quickly and is extremely lightweight and rigid to help ensure excellent imaging data is produced.
- Dovetail Expansion Joint allows for the difference in thermal expansion between carbon fiber and aluminium. The expansion joint allows the aluminium dovetail to expand and contract without stressing the carbon fiber lower truss.
- 3D-printed precision positioned, lightweight baffle tubes to minimize vignetting and maximize image contrast.
- Delta-T ready - For added dew prevention, the CDK14 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.
- Three cooling fans blow out of the optical tube pulling air through the telescope and by the primary mirror. This helps the telescope to reach thermal equilibrium quickly. The fans are controlled by a switch on the optical tube, or can be controlled by via PWI3 software.
All PlaneWave telescopes feature the following ports for dew heater and fan management:
- Two RCA connectors to power the dew heater (from the Delta T or from a 12V source)
- One RJ connector for the Delta T to the telescope to transmit temperature data
- One EFA connector to power the fans (EFA to 5.5-2.1 jack included)
- One auxiliary output port
The built-in dew heaters can be powered by any 12V DC source which has an RCA connector, but the Delta T is required to keep the mirror just above the dew point to avoid overheating and the resulting internal turbulences.
The EFA connector can be powered by the separate EFA controller, any 12V DC source using the supplied EFA to 5.5 x 2.1 jack, or by the Series-5 controller.
Optical system
Aperture | 14" (356 mm) |
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Focal length |
2563 mm |
Focal ratio |
f/7.2 |
Central obstruction |
23.5% by surface area; 48.5% by diameter |
Backfocus from mounting surface |
282 mm |
Optical performance |
3.1μ RMS at 13 mm off-axis; 6.0μ RMS at 35 mm off-axis |
OTA length |
889 mm |
Optimal field of view | 70 mm image circle |
Construction |
Carbon fibre truss and light shroud |
Weight | 22 kg |
Primary mirror
Optical diameter |
355.6 mm |
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Outer diameter | 468.3 mm |
Material |
Fused silica (quartz) |
Shape |
Prolate ellipsoid |
Coating |
Enhanced aluminium - 96% |
Secondary mirror
Diameter |
165 mm |
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Material |
Fused silica (quartz) |
Shape |
Spherical |
Coating |
Enhanced aluminium - 96% |
Lens group
Diameter |
95 mm |
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Number of lenses |
2 |
Coating |
Broadband AR coatings (less than .5% reflected from 400 to 700nm) |
- CDK14 OTA
- OTA cover to protect primary mirror
- PlaneWave thumb drive with software and collimation instructions
This scope comes very well packed in a wooden crate and feet for a forklift if you have one . The box can be handled by a two man lift no problem. Inside the scope is well packed and when you remove from the box, all you can see is the fantastic carbon look and finish. It’s a very well made telescope and mirrors were super clean from the long travel . Set up of this scope was dead easy and I when with the Essacto 4 focuser and the Eagle 4S to control everything . The Eagle runs fans and dew heaters for mirrors wonderfull and has no problems . All I can say it’s a fantastic made scope and very light in weight but solid would recommend to everyone . I have added some pics and my first test picture with it if the helix.