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[66900] 90FL F4 Astrograph Set |
|---|---|
| Part # | 66900 |
| Description | 90FL F4 Astrograph Set |
| Aperture | 90mm Fluorite |
| Focal length | 360mm |
| F-ratio | 4.0 |
| Lens configuration | 6 elements in 5 groups |
| Coating | Fully multi-coated |
| Physical length | 400mm |
| Tube diameter | 80mm |
| Weight | 1.9kg |
| Filter | 82mm (front cap) & 48mm in front of reducer |
| Parts included | 2591, 7151, 7801, 7835, 7872 & 7352 |
| Notes |
