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Borg 55FTF2 – 55FL F3.6 with Feather Touch focuser

Borg 55FTF2 – 55FL F3.6 with Feather Touch focuser
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Price:  £1,595.00(Inc. 20% VAT)
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Product Code:  B5536FTFB
Manufacturer:  Borg

Borg


Japanese made Borg 55FL f/3.6 Astrograph features a premium quality Fluorite objective from Canon and a premium quality Starlight Instruments Feather Touch focuser.

Includes a Starlight Instruments Feather Touch 2" dual speed focuser with 0.8" of draw tube travel and a 57mm accessory thread.

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

Specifications:

  • Aperture: 55mm
  • Focal length: 200mm
  • F-ratio: 3.6
  • Lens configuration: 6 elements including 1 fluorite in 5 groups
  • Coating: Fully multi-coated
  • Image Circle: 43mm
  • Physical length: 180mm
  • Tube diameter: 80mm
  • Weight: 1.1kg
  • Filter: 58mm (front hood) & 52mm ( with part #7000)
  • Back focus distance from 7880: 60mm

55mm Fluorite Objective

  • Focal length: 250mm (fluorite)
  • Native F-ratio f/4.5
  • Length: 95mm
  • Weight: 205g
  • Interface (rear): M57/P0.75
  • Interface (front): 58mm filter thread in front of hood

0.8x Reducer

  • Four-element reducer
  • Back focus distance: 60mm
  • Objective side interface: M57 P0.75 male
  • Camera side interface: M57 P0.75 female

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