Lunt Solar Systems Filters B3400 Blocking-Filter in 2" extension tube (56850)

The Lunt Solar Systems B3400 Blocking Filter is a vital safety component designed for use with Lunt H-alpha solar telescopes and filters. This blocking filter is housed in a 2" straight extension tube and is suitable for telescopes with focal lengths up to 3400 mm for visual use, and up to 1800 mm for imaging applications. It contains additional internal filters required to protect the observer and ensure optimal solar performance. The B3400 cannot be used as a standalone filter; it must be paired with a compatible Lunt H-alpha system. The package includes an adapter for using 1.25" eyepieces, making it versatile for different setups.

Always use the B3400 blocking filter as part of a complete Lunt H-alpha system to ensure both safety and high-quality solar observation. The filter is specifically engineered for advanced solar viewing, providing reliable protection and performance when observing the Sun.

Specifications

Capacity

• Designed for use with Lunt H-alpha solar filter systems.

Connection (to the telescope)

• 2" barrel, compatible with telescopes that have a 2" focuser.

Connection (to eyepiece)

• 2" eyepiece connection, with an included adapter for 1.25" eyepieces.

Equipment

• Includes a 2" to 1.25" eyepiece adapter for added compatibility.

General

• Type: Solar Filter

• Type of build: Blocking Filter (integrated safety filters, straight extension tube)