Lunt Solar Systems Filters LS 100F Ha H-Alpha filter set for 1200mm focal length (12698)

The LS100 Hydrogen-alpha (H-alpha) Single Pass Front Mount Etalon System is designed for astronomers who want to safely observe the Sun in high detail using their own refractor telescopes. This system is compatible with telescopes that have a 2" focuser and a focal length of up to 540mm. It includes a 100mm aperture etalon and comes with a B600 blocking filter, which is necessary for safe solar observation. The etalon is integrally tuned to provide excellent contrast for viewing solar surface and edge features, and the system can be further enhanced with an additional etalon for even higher resolution.

This system is ideal for solar enthusiasts who wish to observe or photograph the Sun’s dynamic features, such as prominences and surface granulation, with exceptional clarity and safety. Always ensure a proper blocking filter is in place when observing the Sun.

System Features

Compatibility

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

Etalon

• 100mm aperture, integrally tuned for optimal performance.

• Estimated bandpass of less than 0.7 Angstroms, enabling high-contrast views of solar details.

• Adding a second etalon can reduce the bandpass to approximately 0.5 Angstroms, improving resolution for advanced viewing or imaging.

Blocking Filter

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

Specifications

Capacity

• Designed for use with lens filters.

Frame

• Compatible with standard refractor telescope frames.

General

• Type: Solar Filter

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