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Lunt Solar ST 100/714 LS100MT FT Ha B1800 Allround OTA
For dual-purpose solar and nighttime astronomy, the Lunt Solar ST 100/714 LS100MT FT Ha B1800 Allround OTA combines a 100mm ED triplet with 714mm focal length and removable H-alpha filtration.
- 100mm aperture supports solar and night use
- 714mm focal length uses f/7.14 optics
- Removable etalon supports modular operation
- B1800 blocking filter diagonal included
- Feather Touch focuser provides 10:1 adjustment
- Vixen rail and flight case included
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Description
Higher-aperture chromospheric observation defines the Lunt Solar ST 130/910 LS130MT Ha B1200 Allround OTA, a 130 mm ED triplet refractor with a 910 mm focal length and listed f/7 optical ratio. Its internal pressure-tuned H-alpha etalon, B1200 blocking filter, 2-inch dual-speed focuser, 10:1 reduction, Losmandy-style rail, CNC tube rings, StarBright-style coatings, and hard transit case provide a substantial modular platform for solar and nighttime observation.
The B1200 blocking filter must remain correctly installed with the etalon during solar observation, because the filter and etalon form the required complete optical path. Inspect the telescope, blocking filter, diagonal, etalon, focuser, and mounting hardware before every session, and remove the solar modules before nighttime use with appropriate non-solar accessories and a compatible mount.
Key Features of Lunt Solar ST 130/910 LS130MT Ha B1200 Allround OTA
This modular ED triplet solar telescope combines a 130 mm aperture with a 910 mm focal length, internal pressure-tuned H-alpha etalon, B1200 blocking filter, 2-inch 10:1 focuser, Losmandy-style dovetail, CNC rings, retractable dew shield, and hard protective case.
- 130 mm ED triplet refractor
- 910 mm focal length with listed f/7 optical ratio
- Internal pressure-tuned Hydrogen-alpha etalon
- B1200 blocking-filter diagonal
- 2-inch focuser with 10:1 reduction
- Losmandy-style dovetail and CNC tube rings
- Modular day and night optical design
- Hard transit case and retractable dew shield
High-Aperture Chromospheric Observation
The supplied application focuses on solar prominences, filaments, active regions, and fine chromospheric structures through the 130 mm H-alpha optical system, while removing the solar components permits nighttime lunar, planetary, and deep-sky observation with suitable accessories and the larger tube requires careful support, balance, storage, and transport.
Why Choose Lunt Solar ST 130/910 LS130MT Ha B1200 Allround OTA
The LS130MT B1200 configuration is relevant when higher solar resolution and modular day-night capability are needed, combining a 130 mm ED triplet, pressure-tuned etalon, B1200 blocking filter, 10:1 focuser, Losmandy mounting, CNC rings, retractable dew shield, and protective case for an organized solar observation system.
- 130 mm aperture for the listed chromosphere application
- Modular H-alpha and nighttime refractor configuration
- B1200 filter, focuser, rings, rail, etalon, and case included
Lunt 5-Year Limited Warranty
The supplied product information lists a 5-year limited warranty for this solar telescope, and the applicable US warranty terms, etalon coverage, B1200 blocking-filter coverage, focuser coverage, registration requirements, and authorized service process should be confirmed before purchase because safe solar operation depends on preserving the complete approved optical path.
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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