OTA · 1990–
Orion ShortTube 80 (original)
Key specifications
| Aperture | 80 mm |
|---|---|
| Focal length | 400 mm |
| Focal ratio | f/5 |
| Optical design | Achromatic Refractor |
| Weight | 1.9 kg |
All specifications
| Focuser type | 1.25" rack-and-pinion |
|---|
About
Original 1990s 80mm f/5 short-tube achromatic refractor; the long-running grab-and-go and guide scope.