Lunt 80mm Universal Day & Night Telescope

(Choose Blocking Filter and Focuser)

• One scope, many frontiers: H-alpha, CaK, white light, lunar/planetary, deep space, and terrestrial—swap modules, not telescopes

• 80 mm FPL53 ED doublet at f/7 (560 mm) delivers crisp contrast by day and true APO performance after dark

• 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

• Doppler True barometric pressure tuning gives instant, precise on-band control for filaments, plages, and limb detail

• 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)

• CaK-ready (393.4 nm, 2.2 Å) and white-light-ready (front film or rear wedge) for multi-wavelength solar projects

• Field-friendly build with CNC mounting rings, Vixen-style dovetail, and a Red Dot Sun Finder handle for fast centering

• Packs light but punches above its weight: ~9.25 lb OTA, aluminum hard case with fitted foam

• Theoretical max magnification: ~140× on steady nights

Specifications

• Telescope Type: Universal Day & Night

• Aperture / Focal Ratio / Focal Length: 80 mm / f/7 / 560 mm

• Objective: Professional-grade ED doublet (FPL53); Ion-Assist broadband AR coatings

• H-alpha Etalon: Modular, UV-grade fused silica at 656.28 nm

• Bandpass: <0.65 Å (single stack); <0.45 Å (double stack, optional)

• Etalon Tuning: Doppler True barometric pressure tuning (instant Doppler shifting)

• Blocking Filter Options: 12 mm, 18 mm; diagonal or straight-through; 6 Å BF bandpass

• Sun Finder: Red Dot Sun Finder handle

• CaK (optional): Rear-mount CaK diagonal; 393.4 nm, 2.2 Å bandpass; sizes 12 mm / 18 mm

• White Light (optional): Front film filter or rear white-light wedge; broadband with AR/UV blocking

• Focusers (choose one): Dual-Speed Lunt Crayford / Dual-Speed Rack & Pinion / Dual-Speed Feather Touch

• Mounting: CNC mounting rings and Vixen-style dovetail

• Storage: Aluminum finished hard case with fitted foam

• Weight (OTA): ~9.25 lb

• Theoretical Max Magnification: ~140×

What’s in the Box?

• Lunt 80 mm f/7 ED doublet OTA with modular H-alpha etalon (single-stack)

• CNC mounting rings and Vixen-style dovetail

• Red Dot Sun Finder handle

• Selected focuser (Dual-Speed Lunt Crayford / Rack & Pinion / Feather Touch)

• Selected blocking filter (12 mm or 18 mm; diagonal or straight-through)

• Aluminum finished hard case with fitted foam

Optional add-ons: Double-stack module (<0.45 Å), CaK diagonal (393.4 nm), white-light wedge or front film, and imaging adapters. Mount/tripod sold separately.