LUNT LS50THa/B400PT H-alpha Solar Telescope – Madeira Optics

LUNT LS50THa/B400PT H-alpha Solar Telescope

  • €1,499.00
    Unit price per 
Tax included. Shipping calculated at checkout.

The LS50THa solar telescope offers 50mm free aperture, 350mm 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 LUNT LS50C H-alpha Double-stack Solar Filter. 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: 50mm
  • 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)

The kit includes:

  • 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
Brand LUNT Solar Systems
Warranty, years 10
Package size (LxWxH), cm 58.5x39.5x23.5
Shipping Weight, kg 3.82
Optical design refractor
Objective lens diameter (aperture), mm 50.0
Focal length, mm 350
Focuser helical, non-rotating
Blocking filter B400
Bandwidth, Angstrom <0.75
Optical tube mounting mode 1/4” thread, fastening rings
User level experienced users
Observed object planets of the Solar System and deep-sky objects