RiDK 800

RiDK 800

The RiDK (Riccardi Dall-Kirkham) represents the new reference point for all modified Dall-Kirkham instruments available on the market.

Specifications

  • ENTRY PUPIL DIAMETER:
  • 800 mm (32'')
  • FOCAL RATIO:
  • F/7
  • FOCAL LENGTH:
  • 5600 mm (220'')
  • LINEAR OBSTRUCTION:
  • 55%
  • FULLY CORRECTED AND ILLUMINATED FIELD:
  • 80 mm
  • WEIGHT:
  • 180 Kg
  • BACK FOCUS EXTRACTION:
  • about 240 mm (9.5'')


Overview "RiDK" SERIE

The results are simply amazing: a telescope that offers a wide, flat focal plane (more than 65 mm in diameter, even in the smallest model!). A wide focal plane that is diffraction limited over a wide spectral range.

Since the corrector group is close to the focal plane, chromatic aberration is undetectable.