Chroma SII 8nm Narrowband Filter - 31 mm


  • Parfocal for systems f/4.0 or slower
  • Transmitted wavefront better than 0.25 waves/inch
  • Parallelism: less than 30 arcsec
  • Made in the U.S.A.
  • H-Alpha 8nm Narrow Band Filter


  • Sale
  • Regular price $275.00

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Chroma SII 8nm Narrowband Filter - 31 mm

Chroma SII 8nm Narrow Band Filters are essential for imaging objects, like nebulae, that are rich in ionized sulfur atoms. These line emission filters work extremely well in heavy light-polluted areas and allow you image on nights when the moon is up.


Filter ShapeRound
Filter TypeSII
Free ShippingYes