Borg 55FL F3.6 Astrograph with Helical Focuser
ITEM #
BG-62581
- Telescope Aperture: 55mm
- Telescope Focal Ratio: f/3.6
- 43mm corrected image circle
Accessories Added
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Borg 55FL F3.6 Astrograph with Helical Focuser
The BORG 55mm F3.6 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.
- 55mm aperture
- 6-element advanced optical system, including one fluorite
- Japanese-made high quality carbon fiber tube
- Borg helical focuser
- M57 camera rotator included
- Back focus : 60mm from M57 camera rotator thread
SPECIFICATIONS
| Aperture | 55 mm (2.25") |
|---|---|
| Back Focus | 60mm |
| Corrected Image Circle | 43mm |
| Dawes Limit | 2.11 arcseconds |
| Focal Length | 200 mm |
| Focal Ratio | f/3.64 |
| Highest Magnification | 110x |
| Light Gathering Power | 62x |
| Limiting Magnitude | 12.5 |
| Optical Design | Petzval |
| Tube Diameter | 60mm |
| Tube Length | 190mm |
| Tube Weight | 1.8 lbs |
INCLUDED ITEMS
- BORG 55FL F3.6ED Astrograph Optical Tube
- M57 camera rotator
- Mounting bracket