Lunt LS130THa Solar Telescope H-Alpha Pressure Tuned

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Featuring Best in Class Resolution and Professional Grade Optics Configuration

  • > 9mm Image Size
  • >.65a Bandpass (Single Stack)
  • >.45a Bandpass (Double Stack)
  • Use with: CaK and White Light Filters
  • 910mm Focal Length
  • 34” Overall Length
  • Current Lead Time: 3-4 months


In stock (can be backordered)







Walkthrough of the Lunt 130mm H-Alpha Pressure Tuned Solar Telescope. Learn about the telescope and which options are right for you for:

Blocking Filters
Dovetail Mount

All Lunt LS130THa solar telescopes require a blocking filter for Day use.

Which blocking filter is right for you?

  • B1200 – for visual use
  • B1800 – for larger field of view and imaging applications
  • B3400 – for larger field of view and imaging applications with larger sensors

The B1200 and B1800 Diagonals can be ordered in standard (diagonal) or straight-thru. If you don’t designate which type you want in the notes field of check out, the default order will be for standard.

View The Universe Thru the Lunt LS130THa Telescope Day or Night

LS130THa Solar Telescope

The Lunt LS130THa solar telescope  is a complete solar telescope. This refractor-based system has a precision-aligned triplet ED lens with a 130 mm aperture.  Furthermore, the focal length is 910 mm, for an f/ratio of 7. Additionally, the coarse focus adjustment is made via a slide tube. While focusing is achieved with a high precision 2″ Starlight Feather Touch  focuser with 10:1 reduction as standard equipment. Most importantly, an internal etalon with tune adjustment allows for a <0.65 Angstrom bandpass.

LS130THa Nighttime Telescope

This is our best telescope for either Solar or Nighttime viewing.  Easily change from daytime viewing (through etalons) to nighttime viewing (without etalons) in minutes! This scope gives you the best of both worlds. You’ll see granular details of the Sun and the best nighttime views without visual anomalies we have made. Now you can use one telescope for all your celestial viewing!

True Doppler Tuning

Importantly, True Doppler Tuning allows for a shift into and away from the user, adding a 3-D like component to the viewing experience. To be sure, it has minimal effect on proms due to their location at the edge of the disk, but it does have an effect on filaments and likewise the active regions on the surface. Also while looking at a filament at the center of the Sun, the user has the ability to Doppler shift from the base of the filament to the tip.  In this way following the filament through it’s structure toward you and away from you.  Amazingly, this allowing for enhanced visual and imaging capability for the observer as well as a research tool for the avid hobbyist. In addition the pressure tuning system provides an order of magnitude more precision to the tuning of the desired features.

LS130THa Solar Telescope Specifications: (single stacked)

  • Optical Aperture: 130 mm
  • Etalon: Internal <0.65 Angstrom (<0.45a Double Stacked)
  • Tuning: Internal Pressure Tune (Doppler True Tuning)
  • Focal Length: 910 mm
  • F Ratio: F/7
  • B1200, B1800 or B3400 Blocking Filter
  • Focuser: 2″ Feather-Touch focuser with 10:1 reduction (2″ travel)
  • Mounting Rings & Dovetail (9.5″)
  • Tube length with blocking filter: 32″
  • Storage: Aluminum finished hard case with fitted foam
  • Weight: 25 lb

Optional Accessories

  • Backing Plate & Focuser
  • Sun Finder: Televue Sol Searcher
  • Double Stack Module
  • CaK Filter
  • White Light Filter

The Lunt LS130THa is available for order today.  We have approximately a three to four month lead time for production.

Latest solar news from NASA

Additional information

Weight 25 lbs

Single Stack w/B1200 Diagonal Blocking Filter, Single Stack w/B1800 Diagonal Blocking Filter, Single Stack w/B3400 Straight-Thru Blocking Filter, Double Stack w/B1200 Diagonal Blocking Filter, Double Stack w/ B1800 Diagonal Blocking Filter, Double Stack w/B3400 Straight-Thru Blocking Filter


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