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[B5536FTF-SB] 55FL F3.6 Astrograph FTF-M57 Focuser Set (Sunrise Blue) |
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| Part # | B5536FTF-SB |
| Description | 55FL F3.6 Astrograph FTF-M57 Focuser Set (Sunrise Blue) |
| Aperture | 55mm Fluorite |
| Focal length | 200mm |
| F-ratio | 3.6 |
| Lens configuration | 6 elements in 5 groups |
| Coating | Fully multi-coated |
| Physical length | 210mm |
| Tube diameter | 80mm |
| Weight | 1.2kg |
| Filter | 48mm (7880) & 52mm (7000) |
| Parts included | 2555, 55FL80B, 2 x 7026, 7051, FTF-M57, FTF-BORGII, 7880, 7352, 2 x 7085 & 2 x 7020 |
| Notes | FTF-M57 is 7901 version |
