Narrowband Filter 3nm H-Alpha & OIII SV220 2inch | Svbony
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Key Features
The SV220 2-inch 3nm filter is ideal for capturing emission lines like Hα, OIII, and SII, offering narrowband transmission for high-contrast, detailed deep-sky images.
With its 3nm bandwidth, the filter ensures superior light transmission while blocking unwanted wavelengths, improving image quality and enhancing the signal-to-noise ratio.
The 2-inch size and M48x0.75 thread make the SV220 filter compatible with a wide range of telescopes and imaging setups, offering flexibility for astrophotography.
Built from high-quality optical glass with durable coatings, the SV220 filter ensures long-lasting performance in astrophotography, even under demanding conditions.
The SV220 2-inch 3nm filter is specifically designed for deep-sky imaging, providing clarity and contrast for capturing nebulae and galaxies in stunning detail.
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SV220 2inch 3nm Narrowband filter

Minimal Halo Coating Design
This narrowband filter Adopts multi-layer minimal halo coating technology, it reduces glare and halo interference. It thereby enhances image contrast and color accuracy, presents sharp celestial details against a clean background, and improves the purity of deep-sky photography images.
Full-Frame Compatible + Ultra-Wide-Angle Adaptable
This light pollution filter is specially designed for full-frame sensors, compatible with mainstream astronomical cameras. It effectively reduces vignetting in ultra-wide-angle lenses, ensuring uniform brightness from the edge to the center of the image and presenting the complete view of nebulae and galaxies.



SV220 2inch 3nm Narrowband filter

Minimal Halo Coating Design
This narrowband filter Adopts multi-layer minimal halo coating technology, it reduces glare and halo interference. It thereby enhances image contrast and color accuracy, presents sharp celestial details against a clean background, and improves the purity of deep-sky photography images.
Full-Frame Compatible + Ultra-Wide-Angle Adaptable
This light pollution filter is specially designed for full-frame sensors, compatible with mainstream astronomical cameras. It effectively reduces vignetting in ultra-wide-angle lenses, ensuring uniform brightness from the edge to the center of the image and presenting the complete view of nebulae and galaxies.



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