SVBONY SV227 2-inch H-Alpha 5nm Narrowband Filter for Deep Sky Photography

The SVBONY H-Alpha 5nm 2" Filter is designed to enhance astrophotography by blocking the transmission of contrast-killing light pollution wavelengths. This filter allows a 5nm bandwidth of light centered on a wavelength of 656.3nm to pass through, with a peak transmittance of up to 90%. Additionally, it blocks infrared wavelengths from 700nm to 1000nm, eliminating the need for a separate IR-Cut filter.

Astrophotography under a light-polluted night sky can be a challenging task, but the H-Alpha filter provides a solution. By filtering out a large portion of the light pollution, the filter improves contrast and detail in the captured images, allowing for high-quality results even in urban environments.

The filter features a 2-inch mounting size, allowing it to thread directly into the 2-inch barrel of your telescope eyepiece. This integration ensures a seamless and secure fit, providing a reliable and convenient solution for your astrophotography needs.

The SVBONY H-Alpha 5nm 2" Filter is designed with a substrate thickness of 1.80mm and a clear aperture of 44mm, ensuring a wide field of view and optimal performance. The filter's wavelength range spans from 300nm to 1000nm, covering a broad spectrum of astronomical observations.

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

The SVBONY H-Alpha 5nm 2" Filter is a valuable tool for astrophotographers, providing an effective solution to overcome the challenges posed by light pollution. With its high-performance specifications and user-friendly design, this filter can significantly enhance the quality of your astronomical images, allowing you to capture the beauty of the night sky even in urban environments.

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