2 Item(s)
Set Descending Direction
  1. 1.25" Oxygen III Line band filter

    $79.95
    This Celestron Oxygen III light pollution filter has a very narrow passband for very high contrast on emission nebulas, making it a good choice for city and suburban observing . . .
  2. 48mm Oxygen III line band filter for 2" eyepieces

    $109.95
    This 2" Celestron Oxygen III light pollution filter has a very narrow passband that blocks out almost all unwanted light pollution, making it a good choice for nebula observing from city and suburban locations . . .
2 Item(s)
Set Descending Direction