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PlaneWave CDK17 Telescope

PlaneWave CDK17 Telescope

Starting Price: $26,000.00
Price as Configured: $26,000.00
Brand: PlaneWave Instruments / SKU: PW-170101Q
The CDK17 from PlaneWave Instruments is a testament to advanced engineering and innovation, specifically designed for astrophotographers and astronomers seeking high-level performance. This telescope integrates PlaneWave’s precision optics and durable construction to provide exceptional image quality across various observational and scientific applications.

The CDK17 stands out with its robust specifications and features:
  • 17-inch (432 mm) aperture
  • 2939 mm focal length
  • f/6.8 focal ratio
  • 262.33 mm back focus from mounting surface
  • Perfectly flat field across the entire 70mm image circle
  • No off-axis coma or astigmatism
  • Rock-solid fused silica mirrors with low thermal expansion
  • Lightweight and rigid carbon fiber optical tube assembly
NOTE: Shipping cost will be determined after the order is made and must be paid before the telescope will ship. A shipping quote can be obtained on request.
Packaging (Required)
Recommended Add-ons and Accessories
Product Price Quantity
PW-170350 - PlaneWave Solid Aluminum Shroud CDK17 (Factory Installation Required)
PW-170350 - PlaneWave Solid Aluminum Shroud CDK17 (Factory Installation Required)
About This Product
Enhance the protection of your telescope’s primary mirror with PlaneWave's Solid Aluminum Shrouds.

Specifically designed for OTAs like the CDK14, CDK17, CDK20, and CDK24, these ruggedized shrouds offer debris and light mitigation ensuring optimal optical performance.
$690.00 each
PW-170399 - PlaneWave Visual Adapter - CDK17
PW-170399 - PlaneWave Visual Adapter - CDK17
About This Product
This Visual Adapter for the CDK 17 allows you to attach standard 2″ visual accessories to the Hedrick Focuser.

The adapter steps the 3″ opening down to 2″ for standard 2″ accessories.
The adapter also adds some additional spacing to optimize the use of a 2″ diagonal so focus is reached with most eyepieces.
$184.00 each
PW-170990 - PlaneWave Piggyback Dovetail Bar for CDK17
PW-170990 - PlaneWave Piggyback Dovetail Bar for CDK17
About This Product
Piggyback dovetails for mounting accessories atop an optical tube. These dovetails accept Losmandy D-style accessories.
Piggyback Dovetail Assemblies come with mounting brackets and a Losmandy style dovetail for mounting accessories on your CDK14, 17, 20, 24, and 700.
Please Note- For CDK17 users: 170990 – is for the current CDK17 design with 10.24” of backfocus
$460.00 each
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Recommended Add-ons and Accessories

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PW-170350 - PlaneWave Solid Aluminum Shroud CDK17 (Factory Installation Required)
PW-170350 - PlaneWave Solid Aluminum Shroud CDK17 (Factory Installation Required)
$690.00
Qty:
View Details
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PW-170350 - PlaneWave Solid Aluminum Shroud CDK17 (Factory Installation Required)
About This Product
Enhance the protection of your telescope’s primary mirror with PlaneWave's Solid Aluminum Shrouds.

Specifically designed for OTAs like the CDK14, CDK17, CDK20, and CDK24, these ruggedized shrouds offer debris and light mitigation ensuring optimal optical performance.
PW-170399 - PlaneWave Visual Adapter - CDK17
PW-170399 - PlaneWave Visual Adapter - CDK17
$184.00
Qty:
View Details
« Back to All Add-ons
PW-170399 - PlaneWave Visual Adapter - CDK17
About This Product
This Visual Adapter for the CDK 17 allows you to attach standard 2″ visual accessories to the Hedrick Focuser.

The adapter steps the 3″ opening down to 2″ for standard 2″ accessories.
The adapter also adds some additional spacing to optimize the use of a 2″ diagonal so focus is reached with most eyepieces.
PW-170990 - PlaneWave Piggyback Dovetail Bar for CDK17
PW-170990 - PlaneWave Piggyback Dovetail Bar for CDK17
$460.00
Qty:
View Details
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PW-170990 - PlaneWave Piggyback Dovetail Bar for CDK17
About This Product
Piggyback dovetails for mounting accessories atop an optical tube. These dovetails accept Losmandy D-style accessories.
Piggyback Dovetail Assemblies come with mounting brackets and a Losmandy style dovetail for mounting accessories on your CDK14, 17, 20, 24, and 700.
Please Note- For CDK17 users: 170990 – is for the current CDK17 design with 10.24” of backfocus
PW-125166 - PlaneWave Reducer 0.66X CDK12.5/14/17
PW-125166 - PlaneWave Reducer 0.66X CDK12.5/14/17
$1,600.00
Qty:
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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% and creates a 30mm illuminated field. The CDK12.5 f/8 telescope will be reduced down to f/5.3.

PW-1702103 - PlaneWave Sliding Counterweight System Rail & Brackets for CDK17
PW-1702103 - PlaneWave Sliding Counterweight System Rail & Brackets for CDK17
$690.00
Qty:
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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-170380 - PlaneWave Adapter, Optec TCF-S2 to CDK17 & CDK20
PW-170380 - PlaneWave Adapter, Optec TCF-S2 to CDK17 & CDK20
$160.00
Qty:
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PW-170380 - PlaneWave Adapter, Optec TCF-S2 to CDK17 & CDK20
About This Product
This adapter provides space between the CDK17 or CDK24 telescopes and the OPTEC TCF-S2 or TCF-S3.

OPTEC TCF- S2 (#170380) provides 0.46″ in length
OPTEC TCF-S3 (#170379) provides 0.26″ in length
PW-170379 - PlaneWave Adapter, Optec TCF-S3 to CDK17 & CDK20
PW-170379 - PlaneWave Adapter, Optec TCF-S3 to CDK17 & CDK20
$160.00
Qty:
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PW-170379 - PlaneWave Adapter, Optec TCF-S3 to CDK17 & CDK20
About This Product
This adapter provides space between the CDK17 or CDK24 telescopes and the OPTEC TCF-S2 or TCF-S3.

OPTEC TCF- S2 (#170380) provides 0.46″ in length
OPTEC TCF-S3 (#170379) provides 0.26″ in length
PW-170398 - PlaneWave Counterweight Bracket for CDK17
PW-170398 - PlaneWave Counterweight Bracket for CDK17
$80.00
Qty:
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PW-170915 - PlaneWave Ronchi Eyepiece and Adapter Kit for CDK17
PW-170915 - PlaneWave Ronchi Eyepiece and Adapter Kit for CDK17
$334.00
Qty:
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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 - PlaneWave CDK17 Fabric Light Shroud
PW-170970 - PlaneWave CDK17 Fabric Light Shroud
$207.00
Qty:
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PW-170970 - PlaneWave CDK17 Fabric 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-170150 - PlaneWave Counterweight Accessory for CDK17
PW-170150 - PlaneWave Counterweight Accessory for CDK17
$265.00
Qty:
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PW-170150 - PlaneWave Counterweight Accessory for CDK17
About This Product
Counterweight accessory mounts to the front ring of the CDK17 for critical balance in Declination. Comes with three 0.5 LB Stackable (#125382) weights.
PW-6081010 - PlaneWave Primary Mirror Shutter, CDK17
PW-6081010 - PlaneWave Primary Mirror Shutter, CDK17
$4,600.00
Qty:
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PW-6081010 - PlaneWave Primary Mirror Shutter, CDK17
About This Product
Safeguard your CDK17’s primary mirror from dust and moisture with the PlaneWave Primary Mirror Shutter.

This 2-petal shutter cover seamlessly attaches to the front ring of the CDK17, providing reliable protection*.

*In conjunction with the CDK17 dust cover, the Solid Aluminum Shroud is required to provide reliable dust protection to the inside of the OTA.
QTY:  
Price as Configured: $26,000.00

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Optical System

Optical Design Corrected Dall-Kirkham
Aperture 17 inch (432 mm)
Focal Length 2939 mm (115.71 inch)
Focal ratio F/6.8
Central Obstruction 23.7% by surface area; 48.6% of the primary mirror diameter
Back Focus from Mounting Surface 10.32 inch (262.33 mm)
Back Focus from Racked in Focuser 7.24 inch (184 mm)
Weight 106 lbs (48 kg)
OTA Length 42 inch (1067 mm)
Optical Performance 6.5 micron rms at 21mm and 9.6 micron at 26mm off-axis
Upper Cage Carbon fiber truss
Lower Cage Carbon fiber truss with carbon fiber light shroud
Optimal Field of View 70mm image circle

Secondary Mirror

Diameter 190 mm (7.48 inch)
Material Fused silica (quartz)
Shape Spherical
Coating Enhanced aluminum – 96%

Primary Mirror

Optical Diameter 17 inch (432 mm)
Outer Diameter 17.5 inch (445 mm)
Shape Prolate ellipsoid
Material Fused silica (quartz)
Coating Enhanced aluminum – 96%

Lens Group

Diameter 105 mm (4.13 inch)
Number of lenses 2
Coating Broadband AR Coatings (less than .5% reflected from 400 to 700nm)

Standard Features

Carbon Fiber Truss Design Minimizes thermal expansion which causes focus shift with changes in temperature
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.