Lunt 100mm Universal Day & Night Telescope

Advanced Package

• Preorder notice: ships 60–90 days after checkout (estimated window)

• One telescope, many frontiers: explore H-alpha, CaK, white light, lunar/planetary, deep-sky, and terrestrial with a modular, upgrade-friendly system

• 100 mm professional-grade APO triplet (FPL53) with Ion-Assist broadband AR coatings for razor-sharp daytime solar detail and premium nighttime views

• Internal modular H-alpha etalon at 656.28 nm: <0.65 Å single-stack out of the box; <0.45 Å with an optional double-stack filter

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

• B1800 blocking filter optimizes the 714 mm system for larger true field and imaging headroom

• Quick conversion to night mode: remove the H-alpha module, reinstall the focuser, and you’ve got a f/7, 714 mm premium APO for the Milky Way, planets, and more

• Field-ready build with CNC rings, Vixen-style dovetail, and an aluminum hard case; Red Dot Sun Finder handle makes centering the Sun fast and intuitive

• Thoughtful add-ons for multi-wavelength solar work: 18 mm CaK diagonal (393.4 nm) and a 2" white-light wedge with 2" polarizer

• Theoretical max magnification: ~175× on steady nights

Specifications

• Telescope Type: Universal Day & Night

• Aperture / Focal Ratio / Focal Length: 100 mm / f/7 / 714 mm

• Optics: Professional-grade APO triplet (FPL53); Ion-Assist broadband AR coatings

• H-alpha Etalon: 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 (platform): 12 mm, 18 mm, 34 mm; diagonal or straight-through; 6 Å BF bandpass

• Package BF: B1800

• CaK Module (included): Rear-mount 18 mm diagonal; 393.4 nm, 2.2 Å bandpass

• White Light Options: 2" rear-mount white-light wedge (included) and front-mount film (optional); AR/UV blocking

• Focuser (package): Dual-speed rack & pinion (Feather Touch optional on platform)

• Mounting: CNC mounting rings and Vixen-style dovetail

• Finder: Red Dot Sun Finder handle

• Storage: Aluminum finished hard case with fitted foam

• Weight (OTA): ~12.7 lb

• Theoretical Max Magnification: ~175×

What’s in the Box?

• Lunt 100 mm f/7 APO triplet OTA with internal <0.65 Å H-alpha module

• B1800 blocking filter (diagonal housing)

• Dual-speed rack & pinion focuser

• 1.25" nighttime star diagonal and 2"-to-1.25" adapter

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

• 2" white-light wedge and 2" polarizing filter

• Lunt 18 mm CaK diagonal (393.4 nm)

• Red Dot Sun Finder handle

• CNC mounting rings and Vixen-style dovetail

• Aluminum finished hard carry case with fitted foam

Optional upgrades: Double-stack H-alpha filter for <0.45 Å, Feather Touch focuser, front solar film, additional adapters, and imaging accessories. Mount/tripod sold separately.