The all new Lunt 40 mm Solar Telescope provides the basic essentials perfect for a first-time introduction to solar observing.

A true grab-and-go dedicated hydrogen alpha telescope, the Lunt 40 mm F/10 system is sure to impress — allowing both amateurs and seasoned professionals to experience the awe-inspiring phenomena of our closest Star!

Easily portable and a joy to use, the Lunt 40 mm joins the Lunt Telescope lineup as our smallest aperture offering, while providing the power, amazing detail and quality you expect from a Lunt Telescope — all at an impressive ~4.0 mm Solar image size!

This scope includes a non-rotating helical focuser, integrated Vixen Style Dovetail and a 5 mm blocking filter for both visual and photography purposes.

Experience the thrill of viewing the Sun’s explosive activity with Lunt’s entry-level 40 mm Dedicated H-Alpha Solar Telescope. Surface detail, hot spots, prominences and more — all available in the stunning Hydrogen Alpha wavelength.

Description

• The New Lunt 40mm Solar Telescope is a F/10 hydrogen-alpha dedicated telescope.
• External Full Aperture Lunt Etalon with tilt-tuning adjustment allows for a 0.65 Angstrom bandpass.

Specifications:

• System Wavelength: 656.28nm. Hydrogen-alpha (tuneable, dedicated)
• System Focal Length: f10
• Sun Image Size: 3.67mm
• Objective: Precision Doublet (Optimized at 656nm)
• Blocking Filter: 5mm standard (upgradeable to 6mm or 12mm)
• Etalon Size: 40mm full aperture precision Lunt Etalon
• Etalon Peak Transmission: >88%
• Etalon Net Finesse: 19
• Etalon FSR (Free Spectral Range): 12 Angstroms
• Etalon Tuning: Conventional Tilt through +/- 1 Angstrom
• Etalon FWHM (Bandpass): <0.65 Angstrom
• Weight of Telescope: 2.8lbs

Additional Features:

• Integrated Vixen Style dovetail plate (included) with integrated 1/4-20 tapped holes in base for camera mounts
• Non-rotating helical focuser (included) (upgrade to FT available)
• Sol-Searcher (Included)
• DS (Doublestack) available by pre-order soon (Optional accessory) (not included)(Price TBD (~US$499)
• Fitted Foam
• Color: Pearl White with Black and Red accents

Suggested Accessories: (not included above)

• Hard Case (Lunt 40mm/ LS50THa Case)
• Lunt Zoom Eyepiece
• Lunt 19mm Eyepiece
• 6mm or 12mm (imaging) Blocking Filter
• Doublestack Filter (TBD)
• Solar Tracking Mount

Compare:

• Bandpass FWHM:
  • Lunt 40mm (Single Stack): <0.65 Angstrom External Etalon
  • Coronado PST (Single Stack): Sub-Angstrom <1.0 Angstrom Internal Etalon
• Etalon Size: 
  • Lunt 40mm: External 40mm clear aperture (no obstruction)
  • Coronado PST: Internal 18mm clear aperture (no obstruction)
  • Coronado 40mm: External 40mm obstructed
• Tuning:
  • Lunt 40mm: Conventional front mount tilt tune
  • Coronado PST: Internal Mechanical Compression
• Blocking Filter:
  • Lunt 40mm: 5mm standard, Upgradeable to 6mm or 12mm
  • Coronado PST: Fixed 5mm, NOT upgradeable
• Focuser:
  • Lunt 40mm: Non-rotating Helical, Upgradeable to Feather Touch
  • Coronado PST: Internal sliding pentaprism, NOT upgradeable
• Sun Finder:
  • Lunt 40mm: Tele Vue Sol Searcher included (alignable)
  • Coronado PST: Inegrated Sun Finder (not alignable)
• Mount Attachment:
  • Lunt 40mm: Vixen Style dovetail with integrated 1/4-20 tapped holes for camera mounts included
  • Coronado PST: 1/4-20 tapped holes in base. Dovetail an added option
• Country of Manufacture:
  • Lunt 40mm: USA (Tucson, Arizona)
  • Coronado PST: Mexico
• Etalon Specification:
  • There is no comparing Lunt Etalon specifications with any other brand. Other brands simply do NOT provide their specifications. Compare and SEE the difference a Lunt Etalon makes.