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