Lunt Solar Systems Filters LS60FHa B3400 2" etalon filter system (33254)

The Lunt Solar Systems LS60FHa B3400 2" etalon filter system is a high-performance H-alpha solar filter designed for advanced visual and imaging applications. This system features a 60mm front-mounted etalon filter with a narrow bandpass of less than 0.7 Angstrom, allowing you to observe the Sun’s surface and edge features with exceptional contrast and detail. The included B3400 blocking filter, with a 34mm aperture, is housed in a 2" straight-through extension tube and is suitable for telescopes with focal lengths up to 3400mm for visual use and up to 1800mm for imaging. The system is ideal for research, professional imaging, and demanding solar observation, and comes with a carry case for safe storage and transport. The B3400 blocking filter is an essential safety component, as it contains additional filters required for safe solar viewing and optimal performance when paired with a Lunt H-alpha filter or telescope.

This system is designed for use with larger telescopes and is especially recommended for users who require a wide illuminated field for large sensor cameras or long focal length telescopes. 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: B3400 blocking filter with 34mm aperture (in 2" straight-through extension tube)

General

• Weight: 850 g

• Type: Solar filter

• Type of build: Line filter