SVBNOY SV227 SII / H-Alpha / OIII 5nm 2" Narrowband CCD Filter for Deep Sky

Description: Product Description SII, H-Alpha, and OIII filters are narrowband filters commonly used in astrophotography and observations to capture specific emission lines from celestial objects.In astrophotography and observation; using a combination of SII; H-Alpha; and OIII narrowband filters can provide a comprehensive and visually appealing representation of celestial objects.Each filter of the SII, H-Alpha, OIII is individually tested and scanned to ensure that the quality meets the high-performance parametersSolar Observing and imaging Visual observation do not look at the sun with the filters; serious eye damage will result if you fail to observe the warning.Conventional narrowband filters cause a heavy loss in transmission due to the strong center wavelength (CWL)-shift; our filter can guarantee high transmittance. The folters are used for deep sky photographic and all are NOT for use on the Sun. Type SII 5nm 2" Filter H-Alpha 2" Filter OIII 5nm 2" Filter SV227 Introduce This SII filter blocks infrared wavelengths from 700nm to 1000nm so you don't need a separate IR-Cut filter. 300-1000nm wavelength range; the SVBONY SII 5nm 2" Filter transmits a 5nm bandwidth of light that is centered at 672nm. 2 inch mounted; the filter can thread directly into the 2 inch barrel of your telescope eyepiece. SVBONY SII narrow band filter reduces other transmissions; including wavelengths of light that are responsible for light pollution (both artificial and natural). The narrow bandwidth and high transmission rate of this filter will make you experience a major boost to contrast. Please Note: This SII filter is NOT for use on the Sun. SVBNOY H-Alpha 5nm 2" Filter blocks the transmission of contrast-killing light pollution wavelengths; improve contrast and detail. The filter blocks the infamous artificial light pollution caused by high- and low-pressure sodium vapor and mercury vapor lights. This H-Alpha filter also blocks infrared wavelengths from 700nm to 1000nm so you don't need a separate IR-Cut filter. Allowing 5nm bandwidth of light centered on a wavelength of 656.3nm to pass through; 90% transmission. Astrophotography under a light-polluted night sky can be difficult; the solution is an H-alpha filter; the H-alpha cut-off filter works to filter out a large part of this light pollution. Please Note: This h-alpha filter is NOT for use on the Sun. SVBNOY OIII 5nm 2" Filter greatly enhances contrast and allows high-contrast imaging even in areas with strong light pollution. OIII 5nm 2" Filter is designed to deliver 90% transmission at the 500.7nm line which provides you with the maximum signal and well defined nebulae structures. 300-1000nm wavelength range; the SVBONY OIII 5nm 2" Filter transmits a 5nm bandwidth of light that is centered at 500.7nm. 2 inch mounted; the filter can thread directly into the 2 inch barrel of your telescope eyepiece. SVBONY OIII narrow band filter reduces other transmissions; including wavelengths of light that are responsible for light pollution (both artificial and natural). Please Note: This OIII filter is NOT for use on the Sun. Specifications Brand: SVBONY Model: SV227 Size: 2-Inch Substrate Thickness:1.85mm Clear Aperture: 44mm Wavelength Range: 300-1000nm CWL: 672nm FWHM: 5nm Blocking: ≥OD5 Peak transmittance: ≥90% Surface Quality: 60/40 Surface parallelism: 1/4λ Thread: M48x0.75 Single Thread: Yes Net Weight: 12.5g / 0.44oz /0.027lb Brand: SVBONY Model: SV227 Size: 2-Inch Substrate Thickness:1.85mm Clear Aperture: 44mm Wavelength Range: 300-1000nm CWL: 656.3nm FWHM: 5nm Blocking: ≥OD5 Peak transmittance: ≥90% Surface Quality: 60/40 Surface parallelism: 1/4λ Thread: M48x0.75 Single Thread: Yes Net Weight: 12.5g / 0.44oz /0.027lb Brand: SVBONY Model: SV227 Size: 2-Inch Substrate Thickness:1.85mm Clear Aperture: 44mm Wavelength Range: 300-1000nm CWL: 500.7nm FWHM: 5nm Blocking: ≥OD5 Peak transmittance: ≥90% Surface Quality: 60/40 Surface parallelism: 1/4λ Thread: M48x0.75 Single Thread: Yes Net Weight: 12.5g / 0.44oz /0.027lb 90% transmission of the filters can block the light pollution of the city. Filter threads directly into the 2 inch barrel of your telescope eyepiece. 90% transmission means the filter also blocks the light from mercury and sodium vapour lamps. TStandard M48x0.75 thread interface. The thickness of the filter can affect wavelength and dispersion of the filter. The filter can use with filter drawer and electronic camera. about svbony

Price: 123.49 USD

Location: Rowland Heights, California

End Time: 2024-07-21T07:00:22.000Z

Shipping Cost: 0 USD