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Lunt Solar ST 100/714 LS100MT FT Ha B1800 Allround OTA Specs
| Brand | Lunt Solar Systems |
| Full Model Code | Lunt Solar Systems LS100MT/B1800FT Modular Hydrogen-Alpha Telescope with Feather Touch Focuser (LS100MT-B1800) |
| Country of Origin | United States |
| Optical Design | Modular ED Refractor (Triplet Objective Core / Removable Internal H-alpha Etalon) |
| Aperture | 100 mm (3.94 inches) - Night Use / 100 mm (3.94 inches) - Solar Use |
| Focal Length | 714 mm |
| Focal Ratio | f/7.14 |
| 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 Lanthanum Triplet Core Glass |
| Secondary Mirror Obstruction | 0 mm (None) |
| Secondary Mirror Obstruction by Diameter | 0% |
| Secondary Mirror Obstruction by Area | 0% |
| Resolving Power | 1.16 Arcseconds (Dawes), 1.38 Arcseconds (Rayleigh) |
| Limiting Visual Magnitude | 12.1 |
| Highest Useful Magnification | 200x |
| Lowest Useful Magnification | 14x |
| Optical Tube Material | Premium CNC-Machined T6061 Aluminum Alloy Structural Frame (White and Anodized Red Accent Finish) |
| Focuser Style & Mechanism | 2.0-inch Starlight Instruments Feather Touch True Dual-Speed Rack and Pinion Focuser with 10:1 Reduction |
| Mirror Lock Mechanism | No (Equipped with Internal Pressure-Tuning Etalon Chamber Adjustment Module) |
| Optical Tube Dimensions | 120 mm x 610 mm (with Retracted Dew Shield) |
| Optical Tube Weight | 6.40 kg (14.11 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 | LS100MT Modular OTA, Internal H-alpha Etalon Module, B1800 Blocking Filter Diagonal (1.25-inch), 2-inch Feather Touch Focuser, CNC Tube Rings, Vixen Dovetail, Custom Hard Flight Transit Case |
| Standard Warranty | 5-Year Limited Warranty |
| Application | Modular multi-wavelength solar structure capture and wide-field deep-sky imaging, swapping out internal active etalon components to convert from daytime H-alpha tracking to an uninhibited nighttime triplet refractor. |
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