Omegon Filters Pro OIII 7nm Filter 1,25"

Designed to enhance OIII spectrum astrophotography, this filter selectively allows emissions from ionized oxygen atoms at 501 nanometers to pass through, elevating contrast levels and enriching your celestial imagery. When paired with complementary filters, ambitious astrophotographers can achieve stunning results, even amidst the glow of light-polluted cities.

Key features at a glance:

• Special coating ensures optimal contrast and high transmission.
• Ideal for monochrome cameras when combined with SII and H-alpha filters.
• Narrow band filter with a bandwidth of 6 nanometers precisely isolates oxygen atom emissions.
• Effectively blocks artificial illumination.
• Suitable for telescopes with an aperture of 8 inches or more.
• Compatible with CCD astronomy cameras and astro-modified DSLR cameras.

The Omegon OIII filter serves as a specialized CCD filter, dramatically enhancing the contrast between celestial objects and the background sky. Whether capturing stellar nurseries or planetary nebulae, this filter excels in both light-polluted urban settings and pristine countryside locales. It isolates OIII emissions, accentuating the vivid red hues of nebular structures, including renowned examples like the Orion Nebula and the Lagoon Nebula.

With its narrow full width at half maximum of just 6 nanometers, this filter maximizes transmission within the doubly ionized oxygen spectrum, further intensifying contrast compared to broader band filters. The precise bandwidth ensures no loss of emission from either line of the OIII doublet, maintaining fidelity in your astronomical imagery.

Specifications:

Mount Material: Aluminium

Telescope Connection: 1.25"

Frame Size: 1.25"

Central Wavelength (nm): 501

Half-Value Width (nm): 7

Series: Pro

Type: Line Filter

Anti Light-Pollution: Yes

Suitable for Hydrogen Nebulae: No

Suitable for Planetary Nebulae: Yes

Suitable for Comets: No

Suitable for Central Stars: No

Suitable for Supernova Remnants: Yes

Useful for Photographs: Yes

Visually Useful: No