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Dual-Band Nebular Filter 2" SV220 - SVBONY

Dual-Band Nebular Filter 2" SV220 - SVBONY

svbony-W9172B

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€158,00 EUR
€158,00 EUR
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Capture images of nebulae with exceptional contrast thanks to the SVBONY SV220 2" Dual-Band filter. Specifically designed for astrophotography, this filter effectively reduces light pollution and enhances the contrast of gaseous, planetary, and supernova remnants, even in highly illuminated environments.

  • Diameter: 2 inches
  • Wavelength range: 300-1100 nm
  • Maximum transmission: 500.7 nm (>90%), 656.3 nm (>94%)
  • Full width at half maximum (FWHM): 7 nm (OIII and H-Alpha)
  • Substrate thickness: 1.80 mm
  • Clear aperture: 44 mm
  • Thread: M48x0.75
  • Surface quality: 60/40
  • Surface parallelism: 1/4λ
  • Net weight: 12.5 g
  • Significant reduction of light pollution, including artificial sources such as sodium or mercury lamps.
  • Notable increase in contrast between the nebula and the sky background for high-quality imaging.
  • Optimized for visual observations and photography of gaseous, planetary, and supernova remnants.
  • Compatible with highly light-polluted environments, including in the presence of moonlight.
  • Compatible with SVBONY electronic cameras and astronomy cameras.
  • Not recommended for telescopes with a focal ratio below F/5.
  • 2" Dual-Band Nebula Filter
  • Dust protection box
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