Refined and SVBONY SV227 Narrowband H-Alpha Filter for Deep Sky Astrophotography

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The Astromania H-alpha filter is designed to enhance your astrophotography experience by effectively filtering out light pollution. By blocking wavelengths outside the 5nm bandwidth centered at 656.3nm, the filter allows for a wider clear focus range and improved contrast in your images.

In addition to its primary function, this H-alpha filter also blocks infrared wavelengths from 700nm to 1000nm, eliminating the need for a separate IR-cut filter. This comprehensive approach ensures that only the desired light reaches your camera sensor, providing you with high-quality, detailed images even under urban skies.

The filter's impressive 90% peak transmittance allows for efficient light transmission, optimizing the performance of your telescope. With a standard M48x0.75 thread interface, the filter seamlessly adapts to most astrophotography devices, making it a versatile and user-friendly solution.

Key Specifications: - Brand: SVBONY - Model: SV227 - Size: 3.2-Inch - Substrate Thickness: 1.80mm - Clear Aperture: 44mm - Wavelength Range: 300-1000nm - CWL: 656.3nm - FWHM: 7nm - Blocking: ≥OD5 - Peak Transmittance: ≥90% - Surface Quality: 60/40 - Surface Parallelism: 1/4λ - Thread: M48x0.75 - Net Weight: 15.12.5g / 0.44oz /0.027lb

SVBONY, a young and passionate team of astronomy and sports optics enthusiasts, has developed this innovative H-alpha filter to help astronomers and astrophotographers capture the beauty of the night sky like never before. By prioritizing practical and educational optical products, SVBONY aims to connect people with the wonders of the universe, making it accessible to everyone.

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