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Lunt Solar ST 80/560 LS80MT Ha B1800 BT R&P Allround OTA Specs
| Brand | Lunt Solar Systems |
| Full Model Code | Lunt Solar Systems LS80MT/B1800BTR&P Modular Hydrogen-Alpha Telescope with B1800 Blocking Filter and R&P Focuser (LS80MT-B1800BT) |
| Country of Origin | United States |
| Optical Design | Modular ED Refractor (Triplet Objective Core / Removable Internal H-alpha Etalon) |
| Aperture | 80 mm (3.15 inches) - Night Use / 80 mm (3.15 inches) - Solar Use |
| Focal Length | 560 mm |
| Focal Ratio | f/7 |
| Optical Coatings | Fully Multi-Coated Ultra-Wideband Anti-Reflective Matrix Optimized for Night and 656.28 nm Solar Spectrum |
| Glass Material | Premium Precision ED Extra-Low Dispersion FPL-53 Triplet Core Glass |
| Secondary Mirror Obstruction | 0 mm (None) |
| Secondary Mirror Obstruction by Diameter | 0% |
| Secondary Mirror Obstruction by Area | 0% |
| Resolving Power | 1.45 Arcseconds (Dawes), 1.73 Arcseconds (Rayleigh) |
| Limiting Visual Magnitude | 11.6 |
| Highest Useful Magnification | 160x |
| Lowest Useful Magnification | 11x |
| Optical Tube Material | Premium CNC-Machined T6061 Aluminum Alloy Structural Frame (White and Anodized Red Accent Finish) |
| Focuser Style & Mechanism | 2.0-inch Lunt Dual-Speed Rack and Pinion Focuser with 10:1 Micro-Gear Reduction System and Tension Lock |
| Mirror Lock Mechanism | No (Equipped with Internal Pressure-Tuning Etalon Chamber Adjustment Module) |
| Optical Tube Dimensions | 115 mm x 450 mm (with Retracted Dew Shield) |
| Optical Tube Weight | 5.10 kg (11.24 lbs) |
| Mount Attachment Type | Heavy-Duty CNC Hinged Tube Rings Connected via Vixen-Style Dovetail Rail Platform |
| Finder Scope Specification | Optional Lunt Sol-Searcher Solar Finder Alignment Device Block |
| Included Accessories | LS80MT Modular OTA, Internal H-alpha Etalon Module, B1800 Blocking Filter Diagonal (1.25-inch), 2-inch Dual-Speed R&P Focuser, CNC Tube Rings, Vixen Dovetail, Custom Hard Flight Transit Case |
| Standard Warranty | 5-Year Limited Warranty |
| Application | Dedicated medium-format solar astrophotography capture and comprehensive deep-sky imaging tracking, featuring an upsized 18mm clear blocking filter aperture to safeguard against edge vignetting on typical APS-C sensor architectures. |
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