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Skywatcher Dobson N 406/1800 Skyliner FlexTube BD DOB Specs
| Brand | Sky-Watcher |
| Full Model Code | Sky-Watcher Skyliner-16-inch FlexTube Black Diamond Manual Collapsible Dobsonian Telescope |
| Country of Origin | China (Manufactured) |
| Optical Design | Newtonian Reflector (Parabolic Primary Mirror Layout with Planar Secondary Mirror) |
| Aperture | 406 mm (15.98 inches) |
| Focal length | 1800 mm |
| Focal Ratio | f/4.43 |
| Optical Coatings | Aluminized Mirror Coating Surface Matrix with Protective Silicon Dioxide Overcoat Shield |
| Glass Material | Standard Borosilicate Glass Substrate with stable thermal response parameters |
| Secondary Mirror Obstruction | 93 mm |
| Secondary Mirror Obstruction by Diameter | 22.91% |
| Secondary Mirror Obstruction by Area | 5.25% |
| Resolving Power | 0.29 Arcseconds (Dawes), 0.34 Arcseconds (Rayleigh) |
| Limiting Visual Magnitude | 15.1 |
| Highest Useful Magnification | 812x |
| Lowest Useful Magnification | 58x |
| Optical Tube Material | Patented Collapsible Truss FlexTube Multi-Rod Slideway Frame with Sheet Steel Lower Core |
| Focuser Style & Mechanism | 2-inch Dual-Speed Crayford Focuser Assembly featuring 10:1 Micro-Focus Reduction Gear Drive |
| Mirror Lock Mechanism | No (Equipped with standard manual spring-tensioned cell adjustment bolts) |
| Optical Tube Dimensions | 450 mm x 1070 mm (Truss collapsed layout) / 450 mm x 1685 mm (Extended configuration) |
| Optical Tube Weight | 30.00 kg (66.14 lbs) (OTA Only) / 68.00 kg (149.91 lbs) (Complete Mount Setup Weight) |
| Mount Attachment Type | Heavy-Duty Side Pivot Plates secured into a Manual Alt-Azimuth Wood Rocker Box Plate |
| Finder Scope Specification | 9x50 Optical Straight-Through Finder Scope Kit Complete with O-Ring Alignment Bracket |
| Included Accessories | 406mm Collapsible Newtonian OTA, Wooden Manual Rocker Base, Side Carry Handles, 9x50 Finder, 25mm Eyepiece, 10mm Eyepiece |
| Standard Warranty | 2-Year Limited Warranty |
| Application | Deep-space nebula hunting and detailed structural exploration, leveraging a massive 16-inch light collecting disk array to capture minimal photons emitted from distant star groupings. |
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