The LS100THa/B1200 is a complete telescope for observing the sun in H-alpha, a precision aligned ED refractor with 102mm aperture (no central obstruction) and 714mm focal length. An internal Etalon with advanced air-pressure tuning system “Pressure-Tuner” provides <0.7 Angstrom bandwidth. This “Pressure Tuner” system allows a more accurate Etalon adjustment than other systems. The “Pressure-Tuner” system adapted the Etalon to varying altitudes and atmospheric pressures for always optimal performance. The Etalon is installed safely inside the telescope-tube.
Fine adjustment is achieved by a 2" Starlight-Instruments Feather-Touch focuser with 1.5" travel and 10:1 reduction.

Blocking-filter is the B1200. The B1200 is good for visual solar observing. Also solar imaging is possible by cameras with small CCD chip. We recommend a LS100THa with B1800 or B3400 blocking-filter by using cameras with middle or large sized CCD chips. The star diagonal in which the blocking filter is installed, is equipped as standard for 1.25" eyepieces and with a T2 camera connection.

Double-stacking is also possible at the LS100THa telescopes. It will reduce the bandwidth to <0.5 Angstrom, much more details on the solar surface will become visible. There are two different possibilities for double-stacking at the LS100THa telescopes. The professional, but also expensive solution is the additional available LS100FHa front-mounted double-stack filter . A well priced possibility is the also optional available internal double-stack module LS100THa/DSII .

Features:

• Aperture: 102mm (ED refractor, unobstructed)
• Focal length: 714mm
• Bandwidth: internal Etalon with <0.7 Angstrom
• Tuning: air-pressure tuning system
• Blocking-filter: B1200 with 1.25" and T2 connection
• Focuser: Starlight-Instruments Feather-Touch focuser with 10:1 reduction
• Two tube rings
• Dove tail bar with GP level for astronomical mounts

The kit includes:

• LS100THa H-alpha solar telescope
• Pressure-Tuner system
• B1200 blocking-filter in star-diagonal
• 2" Feather-Touch focuser
• Tube rings with dove tail bar
• Sol-Searcher
• Transport case
• Instruction manual