Borg 71FL f/5.6 Series 80 with Rack & Pinion Focuser OTA Set

Borg 71FL f/5.6 Series 80 with Rack & Pinion Focuser OTA Set
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£999.00

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Model:  borg_71fl_80mm_f5.6_rp_set
Part Number:  6673
Brand:  Borg

Borg

INCLUDED IN THE BOX

  • 2572 - 71FL Flourite Objective
  • 7151 - 80mm Dia. 150mm Tube
  • 7801 - M77.6 to M68.6 Adapter
  • 9850 - Rack & Pinion Focuser
  • 7504 - 2" Eyepiece Holder SII

Japanese made Borg 71FL f/5.6 features a premium quality Fluorite objective from Canon with 80mm tube diameter.

Includes a Borg 2" Rack & Pinion focuser with fine focusing knob for smooth, accurate focusing.

Modular Borg design allows you to reconfigure the scope for visual observing or to disassemble it for ultra portability.

Specification

  • Aperture: 71mm
  • Focal length: 400mm
  • F-ratio: 5.6
  • Lens configuration: 2 elements in 2 groups
  • Coating: Fully multi-coated
  • Physical length: 330mm
  • Tube diameter: 80mm
  • Weight: 1.3kg
  • Filter: 72mm (front hood)
  • Parts included: 2573, 7151, 7801, 9850 & 7504
  • Notes: Borg rack & pinion focuse. 2-inch opening & M57-thread.

71mm Flourite Objective

  • Focal length: 400mm
  • F-ratio: 5.6
  • Weight: 410g
  • Length: 170mm

Borg Rack & Pinion Focuser

  • M68.8/P0.75 male at the objective side
  • M57/P0.75 female at the camera side
  • 760g
  • 79-144mm long (65mm focus travel)
  • 2mm stroke per rotation of 30mm diameter fine focus knob

Telescope Field of View Simulator

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