Lunt Solar Systems Filters LS60FHa B1200 2" etalon filter system (33250)

The Lunt Solar Systems LS60FHa B1200 2" etalon filter system is designed for safe and high-contrast observation of the Sun in H-alpha light. This front-mounted filter features a 60mm aperture with no central obstruction and uses a tiltable etalon to achieve a narrow bandpass of less than 0.7 Angstrom, allowing detailed views of solar surface features and prominences. The included B1200 blocking filter, housed in a 2" diagonal, is suitable for telescopes with focal lengths up to 1080mm for visual use and up to 600mm for imaging. The system is easy to install on a wide range of refractor telescopes and comes with a carry case for secure storage and transport. For those seeking even higher resolution and contrast, an additional etalon can be added for double-stacking, further reducing the bandpass.

This system is ideal for both visual observation and solar imaging, provided the telescope’s focal length matches the blocking filter’s recommendations. Always use the blocking filter for safe solar observation, as it is a critical component for both safety and image quality.

Specifications

Capacity

• Connection to telescope: 2"

• Half-value width (bandpass): 0.7 Angstrom

Equipment

• Carry case: Yes

• Other contents: B1200 blocking filter with 12mm opening (in 2" diagonal)

General

• Weight: 850 g

• Type: Solar filter

• Type of build: Line filter