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Lunt Solar Systems 60mm f/8.3 Hydrogen-Alpha Double-Stacked Etalon Refractor Solar Telescope (2" Feather Touch Focuser, 6mm Blocking, Pressure Tuned)

Price: $3,094.00

  • Manufacturer: Lunt Solar Systems
  • MPN: LS60THaDS50/B600FTPT
  • SKU: LS60THaDS50/B600FTPT
  • Availability: In-Stock - Ships from Warehouse

Enjoy rarely-seen views of the Sun's surface and rim with the Lunt Solar Systems' 60mm f/8.3 Hydrogen-Alpha Double-Stacked Etalon Refractor Solar Telescope. This dedicated solar scope features a 60mm objective lens , a 500mm focal length, and an internal etalon with a <0.75 Angstrom bandpass. The scope is offered here as a double-stacked system with an internal etalon and removable external front etalon that reduces the bandpass to <0.5 Angstrom for increased contrast and enhanced views of the seething caldron of the surface and rim activity. It comes with a 6mm blocking filter in a star diagonal configuration that fits in the Feather Touch rack-and-pinion focuser and accepts 1.25" eyepieces and accessories and should be used for visual observation only. Its rack-and-pinion Feather-Touch focuser features a dual-speed design with a 10:1 fine-focus for precision focusing. Rack-and-pinion focusers are generally better for handling heavier loads, such as larger imaging systems. This solar scope comes without a mount or tripod, but is outfitted with a mounting base that has a 1/4"-20 threads for attaching it to most tripods or compatible mounts. For safe transportation and storage, two foam-lined hard carrying cases are included, one for the OTA and a smaller one for the front filter.

Optical Performance

  • 60mm aperture
  • f/8.3 focal ratio
  • 500mm focal length
  • Refractor-style optical path
  • Internal etalon with tune adjustment allows for a <0.75 Angstrom bandpass at 656nm$
  • Removable front etalon lowers bandpass to <0.5 Angstrom for rich contrast and enhanced surface details
  • True Doppler pressure tuning allows for a shift into and away from the user for enhanced viewing

Blocking Filter

  • 6mm aperture
  • Use for visual observation only
  • Fits into focuser and accepts 1.25" eyepieces
  • Star diagonal configuration


  • 2" diameter
  • Feather-Touch rack-and-pinion design
  • Dual-speed with 10:1 fine-tuning for precision focusing
  • Rack-and-pinion focusers are generally better for handling heavier weights, as with imaging systems, than a Crayford-style

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