Borg 77EDII f/6.6 Basic OTA Set

Borg 77EDII f/6.6 Basic OTA Set
£749.00

:  

Special - Shipped 10-20 working days.

Model:  borg_77edII_f6.6_set
Part Number:  6279
Brand:  Borg

Borg

INCLUDED IN THE BOX

  • 2179 - 77EDII Objective
  • 7803 - 80mm Dia. 205mm Tube
  • 7137 - Draw Tube
  • 77491 - Draw Tube Holder
  • 7835 - Helical Focuser M
  • 7508 - 2" Eyepiece Holder S
  • 7509 - 2" Eyepiece Holder L
  • 7522 - M57 to T-Thread Adapter

Japanese made Borg 77EDII f/6.6 refractor with ED glass element, which significantly reduces chromatic aberration. 

Includes a Borg Helical focuser for precise dependable 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: 77mm
  • Focal length: 510mm
  • F-ratio: 6.6
  • Lens configuration: 2 elements in 2 groups
  • Coating: Fully multi-coated
  • Physical length: 380mm
  • Tube diameter: 80mm
  • Weight: 1.7kg
  • Filter: 77mm & 82mm (lens cell)
  • Parts included: 2179 & 6003 (Made up of: 7803, 7137, 77491, 7835, 7508, 7509, & 7522)

77mm EDII Objective

  • Focal length: 510mm
  • F-ratio: 6.6
  • Weight: 500g
  • Length: 110mm

Precision helical focuser

  • Light path: 63mm to 82mm
  • OD: 77mm
  • ID: 56mm
  • Weight: 320g

System Diagram

Telescope Field of View Simulator

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