Borg 90FL f/5.6 Basic OTA with Feather Touch Focuser Set

Borg 90FL f/5.6 Basic OTA with Feather Touch Focuser Set

£2,098.00✓ 2 year warranty


Special shipped 15-20 working days.

About this product

Model:  borg_90fl_f5.6_ftf_set
Part Number:  90FTF20

Japanese made Borg 90FL f/5.6 features a premium quality Fluorite objective from Canon with 80mm tube diameter and a premium quality Starlight Instruments Feather Touch focuser.

Includes a Starlight Instruments Feather Touch 2" dual speed focuser with 2" of draw tube travel and a compression ring.

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.


  • Aperture: 90mm
  • Focal length: 500mm
  • F-ratio: 5.6
  • Lens configuration: 2 elements in 2 groups
  • Coating: Fully multi-coated
  • Physical length: 400mm
  • Tube diameter: 80mm
  • Weight: 1.8kg
  • Filter: 82mm (front cap)
  • Parts included: 2591, 7803, FTF-BORGII & FTF-2020BCR

90mm Flourite Objective

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

Telescope Field of View Simulator

What's in the box

  • 2591 - 90FL Flourite Objective
  • 7803 - 80mm Dia. 205mm Tubee
  • FTF-BORGII - M77.6 FTF Adapter
  • FTF2020BCR - 2" Feather Touch Focuser

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