Lunt 40 mm Dedicated H-Alpha Solar Telescope (B600 Blocking Filter, Helical Focuser)

Description

Experience the Sun like never before with the Lunt 40 mm Dedicated H-Alpha Solar Telescope, a compact and high-precision instrument designed for safe solar observation and imaging. Despite its small size, this lightweight telescope delivers the exceptional optical quality and performance that have made Lunt Solar Systems a leader in solar astronomy.

Built around a 40 mm precision doublet objective, optimized for the 656.28 nm hydrogen-alpha wavelength, the telescope reveals stunning solar features — from prominences and filaments to granulation and surface activity. The internal tilt-tuned etalon provides a < 0.7 Å bandpass in single-stack mode, ensuring high contrast and detailed H-alpha views.

The telescope comes equipped with a B600 blocking filter housed in a 1.25" diagonal for secure and accurate solar viewing, along with a 1.25" mini helical focuser for smooth and precise focusing. A built-in TeleVue Sol Searcher makes centering the Sun quick and effortless, while the integrated Vixen-style dovetail plate allows easy mounting on a wide range of standard telescope mounts.

Weighing under 1.3 kg (less than 3 lbs) and with a focal length of 400 mm (f/10), the Lunt 40 mm is the ideal grab-and-go solar telescope — perfect for home observation, classroom demonstrations, or travel. Whether you’re an experienced solar observer or just beginning your journey into H-alpha astronomy, this telescope combines portability, precision, and reliability in one elegant design.

Included in the package

• Lunt 40 mm H-Alpha Solar Telescope (40 mm aperture / 400 mm focal length)
• B600 blocking filter (1.25" diagonal housing)
• Lunt 1.25" mini helical focuser
• Integrated Vixen-style dovetail plate
• Built-in TeleVue Sol Searcher Sun Finder
• Storage box with fitted foam insert (hard case is optional)

Optional upgrades available:

• Larger blocking filter (B1200) for extended field of view and imaging
• Feather Touch focuser for ultra-fine focusing precision
• Lunt Zoom Eyepiece or Eyepiece Set for enhanced visual observation
• Lunt Product Cases and Replacement Foam Inserts — available with or without foam, designed specifically for Lunt Solar telescopes (the LS40THa includes foam by default)

Compact, precise, and beautifully built, the Lunt 40 mm H-Alpha Solar Telescope with B600 filter is the perfect choice for astronomers seeking professional-grade solar performance in a portable format.