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  1. LP-4 H-Beta Line band filter for 1.25" eyepieces

    $79.50
    Very steep cut-off slopes and a narrow passband make this 1.25" Thousand Oaks H-Beta filter ideal for viewing certain very faint emission nebulas like the California, Cocoon, and Horsehead.
  2. LP-4 H-Beta Line band filter for 2" eyepieces

    $159.50
    Very steep cut-off slopes and a narrow passband make this 2" Thousand Oaks H-Beta filter ideal for viewing certain very faint emission nebulas like the California, Cocoon, and Horsehead.
2 Item(s)
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