Lunt 130mm Universal Day & Night Telescope

• Preorder notice: ships 30–45 days after checkout (estimated window)

• One platform for H-alpha, CaK, white light, lunar/planetary, deep-sky, and terrestrial—swap modules, not telescopes

• 130 mm professional-grade APO triplet (FPL51) with Ion-Assist broadband AR coatings delivers sharp, high-contrast views day and night

• Modular H-alpha system (UV-grade fused silica etalon) at 656.28 nm: <0.65 Å single stack out of the box, <0.45 Å when double-stacked

• Doppler True barometric pressure tuning provides instant, precise on-band control so filaments, plages, and limb detail “snap” into view

• f/7, 910 mm focal length: a sweet spot for full-disk solar, high-res surface work, and versatile nighttime imaging

• Choose your focuser: Dual-speed Lunt Crayford, Dual-speed Rack & Pinion, or premium Dual-speed Feather Touch

• Choose your blocking filter: 12 mm, 18 mm, or 34 mm in diagonal or straight-through formats (6 Å BF bandpass) to match your visual/imaging field needs

• CaK-ready: rear-mount CaK module at 393.4 nm (2.2 Å) opens another solar layer; white-light via front film or rear wedge for photosphere detail

• Field-friendly build with CNC rings + Vixen-style dovetail, Red-Dot Sun Finder handle, and an aluminum hard case—~25 lb OTA for rock-solid performance

• Theoretical max magnification: ~225× for high-quality nights on the Moon, planets, and doubles

Specifications

• Telescope Type: Universal Day & Night

• Aperture / Focal Ratio / Focal Length: 130 mm / f/7 / 910 mm

• Optics: APO triplet (Ohara FPL51), Ion-Assist broadband AR coatings

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

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

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

• Blocking Filters (options): 12 mm, 18 mm, 34 mm; diagonal or straight-through; 6 Å BF bandpass

• CaK Module (option): Rear-mount; 393.4 nm, 2.2 Å

• White Light (options): Front film filter; rear white-light wedge 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

• Finder: Red Dot Sun Finder handle

• Storage: Aluminum-finished hard case with fitted foam

• Weight (OTA): ~25 lb

• Theoretical Max Magnification: ~225×

What’s in the Box?

• Lunt 130 mm f/7 APO triplet OTA with modular H-alpha etalon (single-stack)

• CNC mounting rings and Vixen-style dovetail

• Red-Dot Sun Finder handle

• Selected focuser (Lunt dual-speed Crayford, dual-speed R&P, or Feather Touch)

• Aluminum-finished hard case with fitted foam

• Selected blocking filter (12/18/34 mm; diagonal or straight-through), if chosen with the package

Optional add-ons: Double-stack module (<0.45 Å), CaK module (393.4 nm), white-light wedge or front film, additional diagonals/adapters, and imaging accessories.