This is the value pack BORG 90FL F4 astrograph complete set including mounting rings and two plates.
- Aperture : 90mm Fluorite apochromat
- Focal length : 360mm
- F-ratio : 4.0
- Lens configuration : 6 elements in 5 groups
- Coating : Fully multi-coated
- Physical length : 390mm
- Tube diameter : 80mm
- Weight : 2.5kg
- Filter : 82mm (front cap) & 48mm in front of reducer
- Parts included : 2591, 7101, 7780, 7790, 7835, 7506, 7000, 7872, 2×7085, 3200 & 3125 (Camera and camera adapter are not included)