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  1. Optolong L-eNhance 2" Light Pollution Tri-Band Imaging Filter Optolong L-eNhance 2

    Optolong L-eNhance 2" Light Pollution Tri-Band Imaging Filter

    $229.00
    Take back the night sky by using the Optolong L-eNhance 2" Tri-band filter when imaging. A convenient and economic way to eNhance your nightly passion.
  2. Optolong L-Pro 2" Light Pollution Filter Optolong L-Pro 2

    Optolong L-Pro 2" Light Pollution Filter

    $199.00
    The Optolong 2" L-Pro light pollution filter is a great way to suppress the issues caused by all these lights that are all around us. This mounted filter can be used visually or photographically.
  3. LP-3 Oxygen III line band filter for 2" ep LP-3 Oxygen III line band filter for 2

    LP-3 Oxygen III line band filter for 2" ep

    $159.50
    2 Review(s)
    Product description coming soon . . . . . .
  4. LP-4 H-Beta Line band filter for 1.25" eyepieces LP-4 H-Beta Line band filter for 1.25

    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.
  5. LP-4 H-Beta Line band filter for 2" eyepieces LP-4 H-Beta Line band filter for 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.
  6. 1.25" UHC Narrowband filter 1.25

    1.25" UHC Narrowband filter

    $89.95
    6 Review(s)
    This Celestron ultra high contrast (UHC) light pollution filter has improved contrast when compared with the wider passband of a broadband filter, making it easier to pick out faint nebulas . . .
  7. 48mm UHC narrowband filter for 2" eyepieces 48mm UHC narrowband filter for 2

    48mm UHC narrowband filter for 2" eyepieces

    $124.95
    2 Review(s)
    This 2" Celestron ultra high contrast (UHC) light pollution filter blocks out most unwanted light pollution, making it easier to pick out faint nebulas from suburban and dark sky observing sites alike . . .
  8. 1.25" Oxygen III Line band filter 1.25

    1.25" Oxygen III Line band filter

    $99.95
    2 Review(s)
    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 . . .
  9. 48mm Oxygen III line band filter for 2" eyepieces 48mm Oxygen III line band filter for 2

    48mm Oxygen III line band filter for 2" eyepieces

    $139.95
    1 Review(s)
    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 . . .
  10. Optolong L-Pro 1.25" Light Pollution Filter Optolong L-Pro 1.25

    Optolong L-Pro 1.25" Light Pollution Filter

    $149.00
    The Optolong 1.25" L-Pro light pollution filter is a great way to suppress the issues caused by all these lights that are all around us. This mounted filter can be used visually or photographically.
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