Lunt Solar Systems Filters LS60FHa B600 1.25" etalon filter system (33249)

The Lunt Solar Systems LS60FHa B600 1.25" etalon filter system is designed for safe and detailed solar observation in H-alpha light. This system features a 50mm front-mounted etalon filter with no central obstruction, allowing for high-contrast views of both solar surface and edge features such as prominences. The included B600 blocking filter is housed in a 1.25" star diagonal and is suitable for telescopes with a focal length up to 540mm for visual use. The diagonal also provides a T2 connection for easy attachment of cameras, making the system suitable for both visual and imaging applications. For those seeking even higher resolution and contrast, an additional double-stack etalon can be added to reduce the bandwidth further.

This filter system is ideal for refractor telescopes with a 1.25" focuser and focal lengths up to 540mm, providing both safety and performance for solar observation and imaging. Always ensure the blocking filter is installed when using the system for solar work, as it is a critical component for safety and image quality.

Specifications

Capacity

• Half-value width: 0.7 Angstrom (bandwidth less than 0.75 Angstrom for high contrast)

• Connection to telescope: 1.25"

Equipment

• Carry case: Yes

• Other contents: B600 blocking filter with 6mm aperture in a 1.25" star diagonal, also featuring a T2 camera connection

General

• Weight: 850 g

• Type: Solar filter

• Type of build: Line filter