TAKAHASHI FC-100DF REFRACTOR TELESCOPE TFK10110

TAKAHASHI FC-100DF REFRACTOR TELESCOPE TFK10110

PLANEWAVE 14

PLANEWAVE 14" CDK CORRECTED DALL-KIRKHAM TELESCOPE 140101Q fused silica

PLANEWAVE 12.5" CDK CORRECTED DALL-KIRKHAM TELESCOPE 125101Q

$12,000.00

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.

 STANDARD FEATURES 

Carbon Fiber TubeDesign

Dovetail expansion joint

2.75 inch Hedrick Focuser

Cooling Fans

Actual shipping will be calculated and billed separately at the time of shipping.

Call to find out about a package discount with an L-350 mount. 

Please note that this is the "upgraded" fused silica mirror . We do not recommend pyrex.
SKU
125101Q

Price Range: $12,000 to $13,400

OPTICAL SYSTEM

Aperture 12.5 inch (318 mm)
Focal Length 2541 mm (100.04 inch)
Focal ratio f/8
Central Obstruction 42% of the Primary Mirror Diameter
Back Focus from Mounting Surface 10.445 inch (265 mm)
Back Focus from Racked in Focuser 7.2 inch (183 mm)
OTA Length 31 inch (787 mm)
Optical Tube Carbon Fiber
Dimensions Overall Dimensions (PDF)
Weight (includes manual-focuser and dovetail) 46 lbs (20.9 kg)
Weight (includes electronic-focuser and dovetail) 48.5 lbs (22.0 kg)

SECONDARY MIRROR

Diameter 4.65 inch (118 mm)
Material Precision Annealed Borosilicate or Fused Silica
Shape Spherical
Coating Enhanced Aluminum - 96%

PRIMARY MIRROR

Optical Diameter 12.5 inch (318 mm)
Outer Diameter 13 inch (330 mm)
Shape Prolate Ellipsoid
Material Precision Annealed Borosilicate or Fused Silica
Coating Enhanced Aluminum - 96%

LENS GROUP

Diameter 70 mm (2.76 inch)
Number of lenses 2
Coating Broadband AR Coatings (less than .5% reflected from 400 to 700nm)

 


   
   
   
   

SHIPPING

Crated Shipping Weight 163 lbs   (73.9 kg)
Crate Width 22 inch   (559 mm)
Crate Height 29 inch   (737 mm)
Crate Length 48 inch   (1,219 mm)

INCLUDED ACCESSORIES

2.75" to 2" Adapter (125355) Adapts the 2.75" inner diameter of the focuser to a standard 2" inner diameter. This adapter is necessary when setting the primary to secondary spacing. The 125399 Visual 2.75" to 2" adapter is an optional accessory that is designed to space a 2" diagonal for visual use.
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.
OTA Cover The OTA cover is for closing the front of the tube to protect the primary mirror and the inside of the optical tube.
Printed Instructions For Collimation and Spacing
12VDC Power Supply (18778) Provides power for the fans (Not included for European Orders)
More Information
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