Borg 90FL f/5.6 with Rack & Pinion Focuser OTA Set
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Borg 90FL f/5.6 with Rack & Pinion Focuser OTA Set

£1,599.00✓ 2 year warranty

:  

Special shipped 15-20 working days.

About this product

Model:  borg_90fl_f5.6_rp_set
Part Number:  6672

Japanese made Borg 90FL 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.

Includes a 2" eyepiece holder for visual use.

Specification

  • Aperture: 90mm
  • Focal length: 500mm
  • F-ratio: 5.6
  • Lens configuration: 2 elements in 2 groups
  • Coating: Fully multi-coated
  • Physical length: 405mm
  • Tube diameter: 80mm
  • Weight: 2.0kg
  • Filter: 82mm (front cap)
  • Parts included: 2591, 7151, 7801, 9850 & 7504
  • Notes: BORG rack & pinion focuser. 2-inch opening & M57-thread.

90mm Flourite Objective

  • Focal length : 500mm
  • F-ratio : 5.6
  • Weight : 950g
  • Length : 145mm

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

What's in the box

  • 2591 - 90FL Flourite Objective
  • 7151 - 80mm Dia. 150mm Tube
  • 7801 - M77.6 to M68.6 Adapter
  • 9850 - Rack & Pinion Focuser
  • 7504 - 2" Eyepiece Holder SII

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