Orion - Oxygen-III Extra Narrowband 1.25"



  • Astrophotographic 1.25" filter allows high-contrast imaging even in areas with strong light pollution
  • Filter passes light at 500.7nm wavelength (O-III line) with a bandpass of 7nm for pleasing results
  • Very high 90% transmission of O-III light for sharp astrophotos
  • Filter made from high-grade glass with dichroic interference and antireflection coatings; size 1.25". Metal filter cell construction.
  • Use with S-II and H-alpha extra-narrowband imaging filters for tricolor CCD astrophotography

142 EUR
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