Lunt LS 50THa/B400PT H-Aplha Solare Telescope

Lunt LS 50THa/B400PT H-Aplha Solare Telescope Promotion!

Product#: 551154
A very compact, complete telescope for observing the sun in
H-alpha light.
in stock: in stock
CHF 1'850.00


  • Special telescope for the observation of the sun
  • Absolutely safe, no danger to the eyes
  • Shows protuberances & more details on the sun
  • For the visual observation of the sun
  • Bandwidth less than 0.75 Angstrom
  • With comfortable air pressure tuning
  • Small B400 blocking filter in zenith mirror

LUNT LS50THa/B400PT H-alpha solar telescope

A very compact, complete telescope for observing the sun in H-alpha light.

The LS50THa solar telescope offers 50 mm free aperture, 350 mm focal length, and provides a bandwidth of <0.75 Angstrom. The telescope is fitted as standard with the air-pressure tuning system "Pressure-Tuner", the Etalon is safely installed inside the telescope. Prominences and surface detail can quickly be viewed spontaneously. This very portable system is an ideal travel companion for wherever you go.

A B400 blocking filter is installed inside the star diagonal. The B400 is good for visual observing. Focusing is achieved by a non-roting Helical focuser.

Please note that there is only a small back-focus at this telescope, therefore solar-imaging is very difficult. The LS50THa is designed for visual solar observing. We recommend for imaging the 60mm telescopes LS60THa.

Also double-stacking with a bandwidth of only <0.5 Angstrom is possible by using the additional available LS50C filter (0550210). This filter threads directly onto the LS50THa telescope. Double-stacking will provide much more contrast, and more details on the sun will become visible.


  • Aperture: 50  mm
  • Focal Length: 350 mm
  • Bandwidth: <0.75 Angstrom
  • Tuning: air-pressure tuning system "Pressure-Tuner"
  • Blocking Filter: B400
  • non-rotating Helical focuser
  • Tube-ring with 1/4-20 tapped base (standard thread for photo-tripods)
  • Length: 37cm
  • Weight: 2.1kg


  • LS50THa H-alpha Solar Telescope
  • B400 Blocking Filter in star-diagonal
  • Pressure-Tuner
  • Tube ring with 1/4-20 connection for mounting on photo-tripods
  • non-rotating Helical focuser
  • Instruction manual