Baader Filters H-Beta CMOS Narrowband 2"

The Narrowband series presents line filters with a full width at half maximum of 6.5 nanometers, ideal for optical systems ranging from f/10 to f/3.5 in aperture ratio.

This range encompasses most telescopes commonly used by amateur astronomers, making it widely applicable. The 6.5 nanometers width also ensures compatibility with smaller aperture optics, offering excellent value for its performance.

SPECIFICATIONS

Capacity

Central wavelength (nm): 486.1

Half-value width (nm): 5.5

Frame: 2"

Mount material: Aluminium

Coating of optical system: Reflex-Blocker™

Connection (to the telescope): 2"

Filter thickness (mm): 2

Appropriate for telescopes: f/15 - f/1.8

General

Type: Filters

Type of build: Line filter

Series: Narrowband

Area of application

Useful for photographs: Yes

Visually useful: Yes

Twin stars: No

Moon & Planets: No

Nebulae & galaxies: Yes