PlaneWave CDK17 Optical Tube Assembly

Starting Price: $22,500.00
Price as Configured: $22,500.00
Brand: PlaneWave Instruments / SKU: PW-170101Q
The PlaneWave Instruments CDK17 is a 17-inch (0.43 m) f/6.8 Corrected Dall-Kirkham Astrograph telescope. The CDK17 has a dual carbon-fiber truss design, with 3 cooling fans ejecting air from the back of the telescope, and 4 fans blowing across the boundary layer of the mirror's surface. The CDK17 covers a 70 mm field of view without any field curvature, off-axis coma, or astigmatism. The instrument weight is 94 lbs (43 kg) and comes standard with a back plate retaining ring ready to accept the focuser of your choice.

NOTE: Shipping cost will be determined after the order is made and must be paid for before the telescope will ship. A shipping quote can be obtained on request.
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Recommended Add-ons and Accessories
Product Price Quantity
PW-6009003 - PlaneWave FINDER SCOPE AND MOUNTING BRACKET
PW-6009003 - PlaneWave FINDER SCOPE AND MOUNTING BRACKET
About This Product
The finder mounting plate attaches to the back plate of the telescope and the quick-release finder bracket attaches to the mounting plate. If the telescope used in on a German Equatorial Mount, it may be convenient to purchase two finder scopes - one for the east and one for the west side of the telescope. The finder scope is a Baader 10x60 Varios with mounting rings and L-bracket. The back plate of all of the PlaneWave CDK models has four mounting positions for a finder mounting plate.
$460.00 each
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PW-6009003 - PlaneWave FINDER SCOPE AND MOUNTING BRACKET
PW-6009003 - PlaneWave FINDER SCOPE AND MOUNTING BRACKET
$460.00
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PW-6009003 - PlaneWave FINDER SCOPE AND MOUNTING BRACKET
About This Product
The finder mounting plate attaches to the back plate of the telescope and the quick-release finder bracket attaches to the mounting plate. If the telescope used in on a German Equatorial Mount, it may be convenient to purchase two finder scopes - one for the east and one for the west side of the telescope. The finder scope is a Baader 10x60 Varios with mounting rings and L-bracket. The back plate of all of the PlaneWave CDK models has four mounting positions for a finder mounting plate.
PW-170398 - PlaneWave Counterweight Bracket for CDK17
PW-170398 - PlaneWave Counterweight Bracket for CDK17
$70.00
PW-125166 - PlaneWave Reducer 0.66X CDK12.5/14/17
PW-125166 - PlaneWave Reducer 0.66X CDK12.5/14/17
$1,400.00
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PW-125166 - PlaneWave Reducer 0.66X CDK12.5/14/17
About This Product

This is a reducer designed specifically for flat field telescopes like the CDK. This reduces the f ratio of the CDK telescope 66%. The CDK12.5 f/8 telescope will be reduced down to f/5.3. The CDK14 will be f/4.8  and for CDK17 f/6.8 will be reduced to f/4.5

**NOTE – 125166 adapter is compatible with CDK17 that have 10.24″ back focus.   CDK17 with 8.81″ back focus will use the 200166 focal reducer. See instruction manual for details.

PW-170915 - PlaneWave RONCHI EYEPIECE AND ADAPTER KIT FOR CDK17
PW-170915 - PlaneWave RONCHI EYEPIECE AND ADAPTER KIT FOR CDK17
$290.00
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PW-170915 - PlaneWave RONCHI EYEPIECE AND ADAPTER KIT FOR CDK17
About This Product
INCLUDES: CDK BACKPLATE ADAPTER, RONCHI EYEPIECE, AND RONCHI EYEPIECE SPACERS (CDK17WF SPECIFIC SPACER + CDK14-CDK24 STANDARD SPACER)
PW-170970-KIT - PlaneWave CDK17 SPANDEX SHROUD AND SPACER SET
PW-170970-KIT - PlaneWave CDK17 SPANDEX SHROUD AND SPACER SET
$650.00
PW-170970 - PlaneWave CDK17 UPPER CAGE LIGHT SHROUD
PW-170970 - PlaneWave CDK17 UPPER CAGE LIGHT SHROUD
$180.00
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PW-170970 - PlaneWave CDK17 UPPER CAGE LIGHT SHROUD
About This Product
This is a spandex fabric light shroud that blocks out stray light and minimizes dust on the primary mirror.
PW-170350 - PlaneWave SOLID ALUMINUM SHROUD CDK17 (FACTORY INSTALLATION REQUIRED)
PW-170350 - PlaneWave SOLID ALUMINUM SHROUD CDK17 (FACTORY INSTALLATION REQUIRED)
$600.00
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PW-170350 - PlaneWave SOLID ALUMINUM SHROUD CDK17 (FACTORY INSTALLATION REQUIRED)
About This Product
NOTE: Shipping cost will be determined after the order is made and must be paid for before the item will ship. A shipping quote can be obtained on request.
PW-1702103 - PlaneWave SLIDING COUNTERWEIGHT SYSTEM RAIL & BRACKETS FOR CDK17
PW-1702103 - PlaneWave SLIDING COUNTERWEIGHT SYSTEM RAIL & BRACKETS FOR CDK17
$600.00
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PW-1702103 - PlaneWave SLIDING COUNTERWEIGHT SYSTEM RAIL & BRACKETS FOR CDK17
About This Product
Requires sliding weight system counterweights, not included.
PW-170150 - PlaneWave Counterweight Accessory for CDK17
PW-170150 - PlaneWave Counterweight Accessory for CDK17
$230.00
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PW-170150 - PlaneWave Counterweight Accessory for CDK17
About This Product
This PlaneWave counterweight accessory mounts to the front ring of the CDK17 for critical balance in declination. The kit comes with a mounting bracket and three 0.5lb weights. Additional weights (PW-125382) can be purchased separately.
PW-DDP-8004 - PlaneWave TELEVUE - 2" 90º EVERBRITE DIAGONAL
PW-DDP-8004 - PlaneWave TELEVUE - 2" 90º EVERBRITE DIAGONAL
$320.00
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PW-DDP-8004 - PlaneWave TELEVUE - 2" 90º EVERBRITE DIAGONAL
About This Product
TELEVUE - 2" 90º EVERBRITE DIAGONAL W/2”-1¼” ADAPTER
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Price as Configured: $22,500.00

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The CDK (Corrected Dall-Kirkham) Optical Design is an innovative solution for unsurpassed astroimaging quality at an affordable price. The CDK telescope design provides excellent imaging with large format CCD cameras while remaining superb for visual use. The CDK design far exceeds the off-axis performance of most commercial telescope designs including the Ritchey-Chrétien design.

This no-compromise design is unique in making the optical alignment forgiving and collimation very easy. This guarantees the user the best possible performance from the telescope. The end result at the image plane of the CDK design is no off-axis coma, no off-axis astigmatism, perfectly flat field (no off-axis defocus). The CDK design will give you pinpoint stars from the center to the corner of the field of view.

  Features:

Carbon Fiber Truss Design
Open truss tube design with carbon fiber frame minimizes thermal expansion which causes focus shift with changes in temperature. Carbon fiber truss design also promotes quick thermal cooling and provides a rigid, lightweight structure.
 
3D Printed Baffles
PlaneWave 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.
 
Dovetail Expansion Joint
Allows 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.
 
Cooling Fans
Three 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.