About this product
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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