Lunt 100mm Universal Day & Night Telescope

 Observer Package

• Ready for everything: seamless daytime H-alpha observing and quick conversion to nighttime APO for lunar, planetary, and deep-sky

• 100 mm triplet ED APO (FPL53) at f/7 (714 mm) for crisp contrast by day and stellar sharpness after dark

• Internal etalon <0.65 Å with True Doppler (pressure) tuning—dial filaments, plages, and limb detail right on-band for that 3D-like pop

• Visual-optimized package with B1200 blocking filter in a 2" diagonal—safe, bright full-disk views with room to grow

• 2" dual-speed rack & pinion focuser (10:1) for precise focus control with eyepieces or cameras

• Convert in minutes: remove the H-alpha module, install the backing plate & focuser assembly, and you’re set for nighttime observing

• White-light ready: 2" wedge + 2" polarizer included for high-contrast photosphere views (sunspots, faculae, granulation)

• Field-friendly: mounting rings with built-in red-dot solar finder handle, 8" Vixen-style dovetail, and a hard case keep setup fast and travel simple

• Upgrade path: add the optional internal double-stack module later to tighten the bandpass to <0.45 Å for even finer surface detail

• Backed by a 5-year Lunt warranty for long-term confidence

Specifications

• Model / SKU: LS100MT-OBSERVER / LUN-LS100MT-OBSERVER

• Telescope Type: Universal Day & Night (modular)

• Optical Design: Triplet ED APO (FPL53)

• Aperture: 100 mm

• Focal Length / Ratio: 714 mm / f/7

• Etalon / Bandpass: Internal H-alpha, <0.65 Å (single stack)

• Tuning: Internal Pressure Tune (True Doppler Tuning)

• Blocking Filter: B1200, 2" diagonal housing

• Focuser: 2" dual-speed rack & pinion (10:1 micro)

• Mounting: Rings with red-dot solar finder handle + 8" Vixen-style dovetail

• Storage: Aluminum hard case with fitted foam

• Weight (OTA): ~12.7 lb

• Configuration: Single etalon (double-stack optional)

• Warranty: Lunt 5 Years

What’s in the Box?

• LS100MT 100 mm f/7 H-alpha modular refractor with internal etalon

• B1200 blocking filter (2" diagonal)

• 2" dual-speed rack & pinion focuser

• 1.25" nighttime star diagonal

• Lunt 7–21 mm zoom eyepiece

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

• 2"-to-1.25" adapter

• Backing plate & focuser assembly for nighttime configuration

• Mounting rings with built-in red-dot solar finder handle

• 8" Vixen-style dovetail

• Aluminum hard case with fitted foam

Optional upgrade: Add the internal double-stack module to reach <0.45 Å for maximum surface contrast. Mount/tripod and imaging accessories sold separately.