Lunt 40mm H-Alpha Solar Telescope - B500

Lunt Solar 40 mm Dedicated H-Alpha Telescope Features

• Ultra-lightweight, grab-and-go solar telescope design
• Full aperture 40 mm dedicated H-alpha Lunt etalon
• Comes with a 5 mm B500 blocking filter
• Includes Tele Vue Sol-Searcher Sun Finder
• Integrated Vixen-style dovetail plate
• Ideal for both solar imaging and visual observing

If you’re searching for a compact yet powerful solar telescope, the Lunt 40 mm H-alpha telescope with B500 blocking filter is an excellent choice. Weighing less than 3 pounds, this highly portable grab-and-go telescope is perfect for capturing or viewing the Sun whether you’re at home or traveling to your favorite observing site.

This dedicated 40 mm hydrogen-alpha telescope comes equipped with a non-rotating helical focuser (with an option to upgrade to a Feathertouch focuser), a B500 blocking filter, and a built-in Vixen-style dovetail, making setup simple and reliable.

Lunt Solar 40 mm Dedicated H-Alpha Specifications

• Wavelength: Hydrogen-alpha (dedicated, tunable)
• Etalon Size: 40 mm full aperture
• Etalon Tuning Range: Tilt adjustment ±1 Angstrom
• talon Bandpass (FWHM): <0.65 Angstrom
• Peak Transmission: >88%
• Net Finesse: 19
• Free Spectral Range (FSR): 12 Angstroms
• Focal Ratio: f/10
• Solar Image Size: ~3.7 mm
• Objective Lens: Precision doublet, optimized at 656 nm
• Blocking Filter: 5 mm B500 included (upgradeable to 6 mm or 12 mm)
• Weight: 1.27kg
  
  

In The Box

• Lunt Solar Systems 40 mm Dedicated H-Alpha Solar Telescope    
  
• Helical style Focuser
  
• B500 1.25" Diagonal Blocking filter
  
• TeleVue Sol Searcher Sun finder
  
• 4″ Vixen Style Dovetail