Lunt Solar Systems Filters LS 100F Ha H-Alpha filter set for 1800mm focal length (12699)

The LS100 Hydrogen-alpha Single Pass Front Mount Etalon System is designed for solar observation with refractor telescopes that have a 2” focuser and a focal length of up to 540mm. This system features a 100mm aperture etalon that is integrally tuned for optimal performance and high-contrast solar viewing. The package includes the B600 blocking filter, which is essential for safe use and is suitable for telescopes with focal lengths up to 540mm. The etalon's narrow bandpass allows users to see detailed features on the Sun’s surface and at the limb, and adding a second etalon can further enhance the resolution for advanced viewing or imaging.

This system is ideal for anyone interested in observing or photographing the Sun, offering both safety and the ability to see fine solar details. Always use the included blocking filter for safe operation.

System Features

Compatibility

• Designed 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 views of solar features.

• Option to add a second etalon to reduce the bandpass to approximately 0.5 Angstroms, depending on the telescope, for even higher resolution.

Blocking Filter

• Includes the B600 blocking filter, required for safe solar observation.

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)