Lunt Solar Systems Filters LS 100F Ha H-Alpha filter set for 3400mm focal length (12700)

The LS100 Hydrogen-alpha Single Pass Front Mount Etalon System is designed for solar observation with refractor telescopes featuring a 2” focuser and a focal length of up to 540mm. This system provides a 100mm aperture etalon that is integrally tuned for optimal hydrogen-alpha performance. It includes the B600 blocking filter, which is necessary for safe use and is suitable for telescopes with focal lengths up to 540mm. The narrow bandpass of this system allows for high-contrast views of both the Sun’s surface and edge details, and the addition of a second etalon can further enhance resolution for advanced viewing or imaging.

This system is ideal for solar enthusiasts who want to observe or photograph the Sun safely and in high detail. Always use the included blocking filter when observing the Sun.

System Features

Compatibility

• Suitable for refractor telescopes with a 2” focuser and up to 540mm focal length.

Etalon

• 100mm aperture, integrally tuned.

• Bandpass of less than 0.7 Angstroms for high-contrast solar observation.

• The bandpass can be reduced to approximately 0.5 Angstroms with an additional etalon, depending on the telescope, for even higher resolution.

Blocking Filter

• Includes the B600 blocking filter, which is required for safe solar viewing.

Specifications

Capacity

• For use with lens filters.

Frame

• Compatible with standard refractor telescope frames.

General

• Type: Solar Filter

• Type of build: Line filter (hydrogen-alpha etalon)