Baader Filters H-alpha CMOS Narrowband 31mm (70852)

The H-alpha filter is designed to pass light at a wavelength of 656nm, making it an excellent choice for narrowband astrophotography. It provides high-contrast imaging and reveals intricate details of nebulae, even in areas with significant light pollution. By isolating the H-alpha emission line, this filter enhances the visibility of faint structures in deep-sky objects, delivering exceptional results for astrophotographers.

Specifications

• Central Wavelength (nm): 656.3

• Half-Value Width (nm): 6.5

• Frame: Ring

• Mount Material: Aluminium

• Coating of Optical System: Reflex-Blocker™

• Appropriate for: f/10 - f/3.5

• Filter Thickness (mm): 2

• Filter Size (mm): 31

General Information

• Type: Filters

• Type of Build: Line Filter

• Series: Narrowband

Area of Application

• Useful for Photographs: Yes

• Visually Useful: No

• Twin Stars: No

• Moon & Planets: No

• Nebulae & Galaxies: Yes