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Ha, SII and OIII 7nm 31mm unmounted circular filter set - ZWO

Ha, SII and OIII 7nm 31mm unmounted circular filter set - ZWO

zwo-zwset7nm_31c

Available within 7 days

€534,00 EUR
€534,00 EUR
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The ZWO Ha, SII, OIII 7nm narrowband filters are designed for astrophotography to produce images of quality similar to those from the Hubble Space Telescope. By selectively reducing the wavelengths transmitted, these filters eliminate the effects of street lighting and the Moon, providing high contrast against the sky background on many nebulae.

  • Bandwidth: FWHM 7nm (+/-0.5)
  • Transmission selectivity for Ha, SII, OIII
  • CNC machined aluminum cell
  • Available in 4 sizes: 31.7mm, 50.8mm, 31mm, 36mm unmounted circular
  • High-quality Schott glass
  • Glass thickness: 1.85mm
  • Precise optical polishing and anti-reflection treatment
  • Reduces the effects of street lighting and the Moon
  • Provides high contrast on nebulae
  • High manufacturing precision for optimal performance
  • Available in multiple sizes for extended compatibility
  • Enhances the quality of astrophotography images
  • Compatible with CCD imaging systems and digital photography housings (modified or unmodified)
  • ZWO Ha, SII and OIII 7nm filters
  • Machined aluminum cell
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