Telescope Design | Truss Tube Collapsible Dobsonian |
Materials used | Stainless Steel, Water proof marine ply, Veneer, laminate |
Finish | Hard PU clear weatherproof paint |
Primary Mirror : | |
Mirror maker | Guan Shang Optical, taiwan |
Mirror physical/optical diameter | 303mm/300mm |
Mirror edge thickness | 35mm |
Mirror weight | 6.5 KG |
Mirror coating | Aluminium + SiO2 Protective coating 92% reflectivity |
Focal length / focal ratio | 1505 mm, f/5 |
Mirror Cell | 9 point flotation cell |
Mirror cell material | Stainless Steel (304 grade) |
Secondary mirror size | 65 mm minor axis |
Upper Tube Assembly (UTA) | Dia 422 mm, Height 304 mm, 4.4 kg, covered with light eater black foam |
Lower Tube Assembly (LTA) | Height. = 600 mm, Width = 565mm |
Dobsonian Mounting | |
Weight of Rocker Box + Mirror Box | 27 kg, weight to be lifted at wheelbarrow handle end – 8.8 kg |
Wheelbarrow Length | 1530mm |
Eyepiece height at zenith | 1450mm |
Full height of telescope | 1608mm |
Truss Tube Length, Dia, Thickness, weight | 880mm, 32mm, 1.3mm, 2.5KG, All 8 tubes |
Teflon Side bearing / Ground Board | 32X32X15mm, 4 pieces/50X50X5mm 4 piece |
Side bearing diameter | 390mm |
Rocker Box wall thickness | 28mm |
Wheel barrow Additional Thickness | Add 180mm both sides, 360mm |
Shroud | Opaque two way stretchable Lycra |
Supplied Accessories | Telrad Finder, Crayford Focuser for precise focus, 25mm Plössl Eyepiece (1.25″), Alan key ‘T’ for collimation Dust covers for primary and secondary mirrors Wheelbarrow Handles Shroud |