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[90FTF4] 90FL F4 Astrograph Set (Feather Touch Focuser) |
|---|---|
| Part # | 90FTF4 |
| Description | 90FL F4 Astrograph Set (Feather Touch Focuser) |
| 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, FTF-BORGII, FTF-M57, 7872, 7352 & 2 x 7085 |
| Notes | A set includes a pair of mounting rings. |
