H-alpha LUNT LS100THa B3400 Solar Telescope H-alpha LUNT LS100THa B3400

The LS100THa is a complete H-alpha Solar telescope with a diameter of 102mm (unobstructed!) and a focal length of 714mm. An internal Etalon filter with fine tilt adjustment by air pressure controlled by the Pressure Tuner system allows to maintain throughout the observation a bandwidth
. The Pressure Tuner system allows a better adjustment of the Etalon filter than other more rudimentary systems . The "Pressure Tuner" system allows the Etalon filter to be adapted to different altitudes and atmospheric pressures to always provide the best optical performance.

The B3400 blocking filter is ideal for photography with large format CCDs. The extension tube, which houses the locking filter, is equipped for 2" eyepieces and includes an adapter for 1.25" eyepieces.

Focusing is achieved very accurately thanks to the quality of the Starlight Instruments Feather Touch 2" Crayford dual-speed (and 10:1 reduction between macro and micro) focuser. This focuser is supplied as standard with the instrument.

Additionally, this rig could be purchased with the optional Double Stack Etalon LS100FHa accessory (mounts externally on the front end and measures 100mm) or with the new DSII Double Stack internal system to be able to have a bandwidth of

Technical Specifications:

• Diameter: 102 mm
• Focal Length: 714 mm
• Bandwidth:
• Etalon Adjustment: Pressure Tuner System
• Blocking filter: B3400 with 1.25" and T2 connection
• Focuser: Crayford 2" Starlight Instruments Feather Touch with 10:1 reduction
• Weight: 6.6 kg
• Length: 62 cm