| Takahashi Sky 90: Fluorite Apochromat Telescope | |
|---|---|
| Optical System | Fluorite Apochromat Doublet |
| Coating | Front Full-Multi-Coated |
| Aperture | Ø90mm |
| Focal Length | 500mm/408mm/800mm |
| Focal Ratio | F/5.6 - F/4.5 - F/8.9 |
| Light Grasp | 165x |
| Resolution | 1.30" |
| Limiting Magnitude | 11.5 |
| Image Circle | Ø45mm w/reducer |
| Photo Field | 5.1° w/reducer |
| Tube Diameter | Ø95mm |
| Tube Length | 370mm |
| Weight | 3.2kg (7lbs) |
| Finder Scope | 6x30 8° |