Orion O-III Filter, 2"

Article number: Orion O-III 2"
Availability: In stock
Delivery time: Ships in 3-5 business days
  • Oxygen-III Nebula filters provide extremely selective filtration to bring out elusive detail in diffuse and planetary nebulas
  • Orion's O-III eyepiece filter transmits close to 90% of the light corresponding to the two oxygen-III spectral lines at 496nm and 501nm while completely blocking virtually all other wavelengths
  • The O-III Nebula filter provides enhanced views of diffuse and planetary nebulas such as the Veil, Swan, Ring, Dumbbell, Helix, and Eagle nebulas, to name a few
  • Recommended for visual use, not intended for astrophotography
  • Available in two sizes, 2" and 1.25" for use with either 2" or 1.25" telescope eyepieces and accessories
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