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Manufacturer: Borg
Product number: BO62581
EUR2246.00new
EUR 2.246,00
incl. 19 % VAT (DE)
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excl. 6.95 € shipping costs (DE)
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Borg 55FL f/3.6 Complete Set with Helical Focuser
The Borg 55 mm f/3.6 astrograph is a very unique portable telescope. Boasting a small size for easy transportation (including airline and overseas expeditions), this astrograph is the perfect telescope for those needing a portable, high-quality optical tube.This apochromat features a premium quality fluorite objective from Canon Optron Inc. and 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.
Astrophotographic results obtained with this telescope on Astrobin
Here you can find some astrophotographs made with this telescope model: Link to AstrobinTechnical Information
Teleskop-Service has collected a lot of helpful information about refractors and provided it in English as a PDF file: refractors.pdf| Optical design: | Fluorite apochromat |
| Aperture: | 55 mm |
| Focal length: | 200 mm (250 mm without reducer) |
| F-ratio: | 3.64 (4.55 without reducer) |
| Lens configuration: | 6 elements in 5 groups |
| Coating: | Fully multi-coated |
| Image circle: | 43 mm |
| Focusing: | Helical focuser |
| Focuser travel: | 17 mm |
| Back focus distance: | 60 mm from rotator back thread |
| Filter connections: | 58 mm (front hood) & 52 mm (# Borg7000, optional) |
| Camera side connection: | M57 female thread |
| Mounting adapter: | Arca Swiss compatible, 2x 1/4?-20 & 1 x 3/8?-16 |
| Physical length: | 190 mm |
| Tube diameter: | 60 mm |
| Weight: | 0.8 kg |
Astrophotographic results obtained with this telescope on Astrobin
Here you can find some astrophotographs made with this telescope model: Link to AstrobinRecommended accessories
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Cleaning & Collimating
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