Celestron 93623 Narrowband Oxygen III 1.25" Filter - Isolates Oxygen Lines Emitted by Planetary and Emission Nebulae, Eliminates Un-Natural Coloured Halos Surrounding Bright Stars, Black;
Celestron 93623 Narrowband Oxygen III 1.25

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  • The 1-1/4" OIII narrowband filter isolates just the two doubly-ionized oxygen lines (496 and 501nm lines) emitted by planetary and emission nebulae, while blocking the rest of the overall spectrum of light
  • Made in China
  • Package Dimensions : 3.0 L x 1.0 H x 3.0 W (inches)
  • Package Weight : 1.0 pounds
  • The 1-1/4" OIII narrowband filter isolates just the two doubly-ionized oxygen lines (496 and 501nm lines) emitted by planetary and emission nebulae, while blocking the rest of the overall spectrum of light
  • Made in China
  • Package Dimensions : 3.0 L x 1.0 H x 3.0 W (inches)
  • Package Weight : 1.0 pounds

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