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[90FTF20] 90FL Feather Touch Focuser Set |
|---|---|
| Part # | 90FTF20 |
| Description | 90FL Feather Touch Focuser Set |
| Aperture | 90mm Fluorite |
| Focal length | 500mm |
| F-ratio | 5.6 |
| Lens configuration | 2 elements in 2 groups |
| Coating | Fully multi-coated |
| Physical length | 400mm |
| Tube diameter | 80mm |
| Weight | 1.8kg |
| Filter | 82mm (front cap) |
| Parts included | 2591, 7803, FTF-BORGII & FTF-2020BCR |
| Notes |
