Télescope solaire H-alpha LUNT LS50THa/B600PT

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 B600 blocking filter is installed inside the star diagonal. The B600 offers a larger field of view than the smaller B400 and is very good for visual solar 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 of the LS60MT series.

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.

Features

• Field of application Solar observation
• Mirror/Lens diam. 50 mm
• Focal length 350 mm
• Aperture ratio 7
• Angular resolution 2.8 arc seconds
• Full width at half maximum (Angström), less then 0.75
• Colour white
• Eyepiece Barrel Diameter 31.7 mm
• Material Aluminium
• Mount Type Optics without Mount
• Extended warranty 5 years
• Total length 370 mm
• Total width 170 mm
• Total height 100 mm

SCOPE OF DELIVERY

• LS50THa H-alpha Solar Telescope
• B600 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