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  1. 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.
  2. 1.25" #ND9 13% Transmission neutral density grey Moon filter Astro-Tech 1.25

    Astro-Tech 1.25" #ND9 13% Transmission neutral density grey Moon filter

    $12.95
    1 Review(s)
    This Astro-Tech 1.25" 13% transmission neutral gray filter reduces the brightness and glare that can mask low contrast details during lunar and planetary observing . . .
  3. #47 Violet 1.25" color filter Astro-Tech #47 Violet 1.25

    Astro-Tech #47 Violet 1.25" color filter

    $11.95
    If you have a big scope (8" in aperture and larger), this Astro-Tech #47 violet 1.25" eyepiece filter can help detect high clouds and haze over the Martian polar caps and enhance structure in Saturn's rings . . .
  4. Explore Scientific 2" 0.9 Neutral Density Filter 13% Transmission Explore Scientific 2

    Explore Scientific 2" 0.9 Neutral Density Filter 13% Transmission

    $59.99
    • 2" Diameter Filter
    • Works best in 6-8 inch telescopes
    • Get more out of your lunar observing
  5. Optolong H-Alpha 7nm 1.25" filter Optolong H-Alpha 7nm 1.25

    Optolong H-Alpha 7nm 1.25" filter

    $159.00
    The H-Alpha 7nm from Optolong works fantastically as a photographic filter, but also works for viewing faint emission nebula.
  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. #23A Light red 1.25" color filter Astro-Tech #23A Light red 1.25

    Astro-Tech #23A Light red 1.25" color filter

    $11.95
    This #23A light red Astro-Tech 1.25" eyepiece filter is useful when observing Mercury and Venus during the day and at twilight and when observing Mars, Jupiter, and Saturn with telescopes 4" in aperture and larger . . .
  8. 1.25" polarizing filter Lunt 1.25

    Lunt 1.25" polarizing filter

    $45.00
    The 1.25" Lunt PF1.25 polarizing filter is designed for use with 1.25" eyepieces in the Lunt LS1.25HW Solar Wedge to control the image brightness during white light visual observing.
  9. Optolong L-eXtreme 1.25" Light Pollution Dual Passband Imaging Filter 7nm Ha/OIII Optolong L-eXtreme 1.25

    Optolong L-eXtreme 1.25" Light Pollution Dual Passband Imaging Filter 7nm Ha/OIII

    $239.00

    Take back the night sky by using the Optolong L-eXtreme 1.25" Dual Passband filter when imaging. Take your backyard imaging to places you never thought possible.

  10. Optolong LRGB + SHO 1.25" Imaging Mounted 7 Filter Set Optolong LRGB + SHO 1.25

    Optolong LRGB + SHO 1.25" Imaging Mounted 7 Filter Set

    $665.00
    This is the complete set of imaging filters to take your session to a higher level.

    Out of stock

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