Lunt 80mm Universal Day & Night Telescope

Advanced Package

• One scope, all skies: switch seamlessly between H-alpha, CaK, white light, and nighttime observing with a truly modular 80 mm platform

• ED doublet with FPL53 glass at f/7 (560 mm) delivers crisp solar structure by day and professional-grade APO performance at night

• True Doppler (pressure) tuning snaps filaments, plages, and edge detail into focus with precise on-band control

• B1800 blocking filter (upgrade from B1200) gives a larger field and imaging headroom, ideal for the LS80MT’s 560 mm focal length

• Explore multiple wavelengths: H-alpha, white light via the included wedge + polarizer, and Calcium K at 393.4 nm with the B1200 CaK module

• Ready to image: internal etalon <0.65 Å single-stack; add an optional Double Stack filter later to narrow to <0.45 Å for high-definition surface contrast

• Back plate & focuser included for quick reconfiguration—remove the H-alpha module to convert into a nighttime/terrestrial refractor in minutes

• Field-friendly build: CNC mounting rings + Vixen-style dovetail, Red Dot Sun Finder handle, and a rugged aluminum hard case with fitted foam

Specifications

• Telescope Type: Universal Day & Night

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

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

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

• H-alpha Bandpass: <0.65 Å (single stack), <0.45 Å (with optional Double Stack)

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

• Blocking Filters (system): Sizes 12 mm or 18 mm; diagonal or straight-through; bandpass 6 Å

• CaK Module: Rear-mount diagonal, 393.4 nm, 2.2 Å bandpass (B1200 included in this package)

• White Light Options: Front-mount film filter (optional), rear-mount white light wedge (included); AR/UV blocking

• Focuser Options (platform): Dual-speed Lunt Crayford, Dual-speed Rack & Pinion, or Dual-speed Feather Touch (package includes backing plate & focuser for night/terrestrial mode)

• Mounting: CNC rings and Vixen-style dovetail

• Finder: Red Dot Sun Finder handle

• Storage: Aluminum-finished hard case with fitted foam (plus branded soft bag)

• Weight (OTA): ~9.25 lb

• Theoretical Max Magnification: ~140×

What’s in the Box?

• LS80MT 80 mm f/7 ED doublet modular telescope with internal <0.65 Å H-alpha etalon and B1800 blocking filter

• 1.25" diagonal with 2"–to–1.25" adapter

• Red Dot handle & mounting ring assembly

• 8" Vixen-style dovetail

• Backing plate & focuser for nighttime/terrestrial conversion

• Lunt 7–21 mm zoom eyepiece (0.1% AR coatings)

• 2" white light wedge and 2" polarizing filter

• B1200 Calcium K module (393.4 nm)

• Branded drawstring soft bag and aluminum-finished hard carry case with foam inserts

Optional upgrade: Add a Double Stack filter later to tighten the H-alpha bandpass to <0.45 Å for even more surface detail.