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One scope, many frontiers: H-alpha, CaK, white light, lunar/planetary, deep space, and terrestrial—swap modules, not telescopes
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80 mm FPL53 ED doublet at f/7 (560 mm) delivers crisp contrast by day and true APO performance after dark
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Modular H-alpha system (656.28 nm) starts at <0.65 Å single-stack; add a double-stack to tighten to <0.45 Å when you want surface detail to pop
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Doppler True barometric pressure tuning gives instant, precise on-band control for filaments, plages, and limb detail
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Configure your workflow: choose Blocking Filter (12 mm or 18 mm, diagonal or straight-through) and Focuser (Dual-Speed Lunt Crayford, Rack & Pinion, or Feather Touch)
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CaK-ready (393.4 nm, 2.2 Å) and white-light-ready (front film or rear wedge) for multi-wavelength solar projects
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Field-friendly build with CNC mounting rings, Vixen-style dovetail, and a Red Dot Sun Finder handle for fast centering
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Packs light but punches above its weight: ~9.25 lb OTA, aluminum hard case with fitted foam
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Theoretical max magnification: ~140× on steady nights
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Telescope Type: Universal Day & Night
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Aperture / Focal Ratio / Focal Length: 80 mm / f/7 / 560 mm
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Objective: Professional-grade ED doublet (FPL53); Ion-Assist broadband AR coatings
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H-alpha Etalon: Modular, UV-grade fused silica at 656.28 nm
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Bandpass: <0.65 Å (single stack); <0.45 Å (double stack, optional)
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Etalon Tuning: Doppler True barometric pressure tuning (instant Doppler shifting)
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Blocking Filter Options: 12 mm, 18 mm; diagonal or straight-through; 6 Å BF bandpass
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Sun Finder: Red Dot Sun Finder handle
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CaK (optional): Rear-mount CaK diagonal; 393.4 nm, 2.2 Å bandpass; sizes 12 mm / 18 mm
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White Light (optional): Front film filter or rear white-light wedge; broadband with AR/UV blocking
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Focusers (choose one): Dual-Speed Lunt Crayford / Dual-Speed Rack & Pinion / Dual-Speed Feather Touch
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Mounting: CNC mounting rings and Vixen-style dovetail
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Storage: Aluminum finished hard case with fitted foam
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Weight (OTA): ~9.25 lb
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Theoretical Max Magnification: ~140×