PlaneWave CDK400 Telescope System

PlaneWave CDK400 – 0.43-Meter Observatory Telescope System

A precision-engineered observatory solution for advanced astrophotography and research.

The PlaneWave CDK400 is a high-performance observatory system that pairs the powerful CDK17 optical tube with the robust L-500 Direct Drive Mount. Designed for professional astrophotographers and astronomy researchers, this system delivers research-grade imaging across a wide field with exceptional ease of use and long-term reliability.

Inheriting design principles from the PW-1000 1-meter observatory platform, the CDK400 features PlaneWave’s revolutionary Corrected Dall-Kirkham optics combined with their state-of-the-art L-Series direct drive technology, redefining the standard for compact research observatories.

Key Specifications

Optical Design: Corrected Dall-Kirkham (CDK) Astrograph
Clear Aperture: 432mm (17 in)
System Focal Ratio: f/6.8
Focal Length: 2939mm
Image Field: 70mm, flat field with no curvature, coma, or astigmatism
Collimation: Engineered for simple, stable collimation and exceptional imaging performance
Back Plate Interface: Retaining ring supports 3.5" Hedrick Focuser (sold separately)
Delta T System: Ready for optional mirror heating
Telescope Weight: Approx. 43 kg (94 lbs)
Dovetail Size: 8-inch
Crating Requirement: #1323517 (charged separately)

Mount Specifications – L-500 Direct Drive Mount

Load Capacity: Supports payloads over 90 kg (200+ lbs), ideal for CDK17
Drive Type: Direct Drive with zero backlash and zero periodic error
Slew Speed: Up to 50°/second
Encoders: Integrated high-resolution absolute encoders
Cable Management: Through-the-mount cabling for clean integration
Crating Requirement: #1323505 (charged separately)

System Features

- Fully corrected optics with a flat 70mm image circle ideal for wide-field astrophotography

- Compact, rigid mount optimized for speed, precision, and heavy payloads

- Exceptional optical alignment and collimation retention

- Built-in readiness for remote operation and environmental control

- Excellent choice for both private observatories and institutional research settings