PlaneWave 14 inch CDK Optical Tube Assembly

PlaneWave 14 inch CDK Optical Tube Assembly
  • $15,000.00

 


The PlaneWave Instruments CDK14 is a 14 inch (0.36 m) f/7.2 Corrected Dall-Kirkham Astrograph telescope. The CDK14 covers a 70 mm field of view without any field curvature, off-axis coma, or astigmatism. The CDK14 is a lightweight carbon-fiber truss design weighing less than 50lbs, with 3 cooling fans blowing air throughout the back of the telescope.

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.

Recommended Configuration

CDK14 with Bisque MX+ Mount

$15,000
CDK14 Optical Tube (140101)
$9,000
Software Bisque Paramount MX+
$230
1 Additional 20 lb. MX+ counterweight
$1,000
Hedrick Focuser, 3.5" (200340)
$800
EFA Focuser/Fan Control (200901)
$26,030
Total Price
 
PlaneWave System
Aperture 14 inch (356mm)
Focal Length 2563mm (101 inch)
Focal Ratio f/7.2
Central Obstruction 48.5% of the Primary Mirror diameter; 23.5% by surface area
Back Focus from Mounting Surface 11.09 inch (282 mm)
Weight 48 lbs (22 kg)
Upper Cage Carbon Fiber Truss
Lower Cage Carbon Fiber Truss with Carbon Fiber Light Shroud
Overall Dimensions 35.7 inch (907 mm) long X 18.2 inch (462mm) wide X 19 inch (483mm) high
PlaneWave Primary Mirror
Diameter 14.1 inch (358 mm)
Aperture 14 inch (355.6 mm)
Focal Ratio f/3.26
Mounting Laser Collimated and Permanently Fixed
Material Precision Annealed Pyrex
Shape Prolate Ellipsoid
Coating Enhanced Aluminum - 96%
PlaneWave Secondary Mirror
Diameter 6.5 inch (165 mm)
Material Precision Annealed Pyrex
Shape Spherical
Coating Enhanced Aluminum - 96%
PlaneWave Lens Group
Diameter 95 mm (3.7 inch)
Number of Lenses 2
Coating Broadband AR Coatings (less than .5% reflected from 400 to 700nm)
PlaneWave Standard Features
Design Carbon fiber truss design that minimizes thermal expansion which causes focus shift with changes in temperature
Light Shroud Carbon fiber lower light shroud that protects the primary mirror from damage and stray light
Dovetail Expansion Allows for the difference in thermal expansion between carbon fiber and aluminum without stressing the carbon fiber lower truss.
Hedrick Focuser For added dew prevention, the CDK14 is internally wired with polyimide film heater pads and temperature sensor, ready to be controlled with the optional Delta-T controller.
Cooling Fans Three fans blow out of the optical tube pulling air though 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 conrolled by a computer if the optional Electronic Focus Accessory (EFA Kit) is purchased.
PlaneWave Shipping
Crated Shipping Weight 225 lbs (102.1 kg)
Crate Dimensions 31 inch wide X 26 inch high X 53 inch long
PlaneWave Included Accessories
Ronchi Spacer (200354) This spacer is used for setting the primary to secondary spacing. It has an 1-1/4 inner diameter and may be used with 1-1/4 oculars for collimation.
Ronchi Ocular This ocular is a Ronchi screen used for setting the primary to secondary spacing.
Primary Mirror Cover The Primary Mirror Cover protects the primary mirror.
PlaneWave Thumb Drive Containing all documentation and software for collimation and spacing
12VDC Power Supply (18778) Provides power for the fans (Not included for European Orders)
Wrench Set (5812A35) English Hex Wrenches (European Orders Only)

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