PlaneWave CDK400 Observatory System

Starting Price: $42,500.00
Price as Configured: $42,500.00
Brand: PlaneWave Instruments / SKU: PW-170130Q
Enjoy exceptional optical and tracking performance for astrophotography, or research, with the CDK400 package! Includes a CDK17 optical tube and L-500 mount.

NOTE: Packaging and shipping cost will be determined when the order is ready to ship and must be paid for before the equipment will ship. A shipping quote can be obtained on request


Recommended Add-ons and Accessories
Product Price Quantity
PW-170970-KIT - PlaneWave CDK17 Spandex Shroud and Spacer SET
PW-170970-KIT - PlaneWave CDK17 Spandex Shroud and Spacer SET
$650.00 each
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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Recommended Add-ons and Accessories

Enter the quantity desired for each item and click the close button to continue with your purchase.
PW-170970-KIT - PlaneWave CDK17 Spandex Shroud and Spacer SET
PW-170970-KIT - PlaneWave CDK17 Spandex Shroud and Spacer SET
$650.00
PW-6009003 - PlaneWave Finder Scope and Mounting Bracket
PW-6009003 - PlaneWave Finder Scope and Mounting Bracket
$460.00
« Back to All Add-ons
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-600195 - PlaneWave Delta T Heater
PW-600195 - PlaneWave Delta T Heater
$750.00
« Back to All Add-ons
PW-600195 - PlaneWave Delta T Heater
About This Product

With PlaneWaves's Delta T Heater you can:

  • Have Full Control of Primary and Secondary Heater using PlaneWave Interface (PWI 3) Software
  • Monitor current temperature of primary mirror, secondary mirror and surrounding ambient temperature.
  • Automatically maintains mirror temperature set point as outside temperature changes.
  • See a real time graph of all temperature sensors.
PW-240901-KIT - PlaneWave Electronic Focus Accessory (EFA) Kit for CDK14, CDK17, CDK20, & CDK24
PW-240901-KIT - PlaneWave Electronic Focus Accessory (EFA) Kit for CDK14, CDK17, CDK20, & CDK24
$1,150.00
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PW-240901-KIT - PlaneWave Electronic Focus Accessory (EFA) Kit for CDK14, CDK17, CDK20, & CDK24
About This Product
The EFA control box can be mounted to the back plate of any PlaneWave telescope OTA (CDK12.5 through 24 inches).  The EFA Kit plugs into the temperature sensors and fan control systems that are built into each telescope. A hand controller is provided to control an optional focuser or rotator when standing at the eyepiece.
PW-200340 - PlaneWave Hedrick Focuser
PW-200340 - PlaneWave Hedrick Focuser
$1,150.00
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PW-200340 - PlaneWave Hedrick Focuser
About This Product

The Hedrick focuser designed by PlaneWave is a heavy duty no-slip focuser capable of handling an imaging payload of up to 20lbs.

PW-600180 - PlaneWave IRF90 - Integrated Rotating Focuser
PW-600180 - PlaneWave IRF90 - Integrated Rotating Focuser
$5,180.00
« Back to All Add-ons
PW-600180 - PlaneWave IRF90 - Integrated Rotating Focuser
About This Product
The PlaneWave IRF90 is a large-capacity integrated focuser and rotator for use with ALT/AZ or equatorially-mounted systems.
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-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.
QTY:  
Price as Configured: $42,500.00

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The CD400 System includes:
  • CDK17 optical tube:
    • f/6.8 and 2939mm focal length
    • No coma, no off-axis astigmatism, and no field curvature.
    • Pinpoint stars across a 70mm image circle.
    • Rock solid fused silica mirrors with low thermal expansion.
    • Carbon fiber optical tube assembly for rigidity and fast cooling.
    • Simple secondary mirror collimation thanks to the fixed primary mirror.
  • The PlaneWave Instruments CDK17 is a 17-inch (0.43m) 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 backplate retaining ring ready to accept the focuser of your choice. All CDK17 telescopes come with fused silica primary and secondary mirrors. 

  • L-500 direct drive mount:
    • Zero periodic error, zero backlash, and minimal maintenance due to the lack of gears.
    • Slew speeds up to 50 degrees/sec for satellite tracking and fast target acquisition.
    • Sidereal tracking accuracy of < 0.30 arcseconds RMS over 5 minutes.
    • High resolution optical encoders on both axes for precision feedback.
    • Can be installed in either equatorial, or alt/az configuration.
    • Includes PWI4 software (ASCOM compliant) for mount control
The L-Series combines versatility, simplicity and affordability by combining all the technology of Planewave's Observatory class telescopes into a compact stand-alone mount. In its Alt/Az configuration, it is considerably more compact than its equatorial counterpart, allowing a larger telescope to fit in a smaller enclosure. The mass it takes to make a rigid alt/az mount is substantially less, leading to cost savings. Unlike German Equatorial mounts, there are no meridian flips to deal with, and no large protruding counterweights to create a dangerous hazard in a public observatory. Alt/Az is more intuitive to use and no polar alignment is needed.

Planewave L Series Mount features:
  • Direct-drive motors on each axis for smooth, fast, and virtually silent movement of the telescope
  • Slew speeds up to 50 degrees per second
  • High-resolution encoders on each axis for precise positioning
  • Zero backlash
  • Zero periodic error
  • PointXP mount modelling software
  • Enclosed electronics
  • Through the mount cabling


Direct drive motors and encoders

Direct Drive motors and on-axis encoders eliminate the need for  gears, thereby eliminating backlash and periodic error. With high-resolution encoders providing the feedback for the direct drive motors, not only will the telescope track without periodic error and backlash, the mount will also counter wind gusts with precise servo feedback.  

Incredible Slew Speed

The direct drive motors can move the telescope at speeds up to 50 degrees per second for tracking satellites or just to minimize target acquisition time.  

Dual mounting bracket

PlaneWave style mounting bracket to hold CDK17/20 onto inside of fork arm with additional option of mounting a scope on the outside of the fork arm. Optional dovetail clamp required.  

Azimuth dovetail balance system

For precise center of gravity balance whether in Alt-Az or Equatorial configuration  

Through the mount cabling

Access panels in the fork arm and azimuth axis allow for camera equipment cabling through the inside of the mount.  

Proven CDK700/PW1000 Technology

The L-Series uses the same proven technology as the CDK700 and 1-Meter PW1000 which are being used in Universities round the world.