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  1. LP-3 Oxygen III line band filter for 1.25" ep

    $79.50
    Product description coming soon . . . . . .
  2. Celestron 18% Transmission green 1.25" Moon filter

    $9.95
    This medium green 1.25" filter reduces irradiation, glare, and excess image brightness in lunar observing . . .
  3. Astro-Tech 1.25" #ND9 13% Transmission neutral density grey Moon filter

    $12.95
    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 . . .
  4. 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 . . .
  5. Explore Scientific 1.25" 0.9 Neutral Density Filter 13% Transmission

    $49.99
    • 1.25" Diameter Filter
    • Works best in 6-8 inch telescopes
    • Get more out of your lunar observing
  6. 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.
  7. 1.25" Oxygen III Line band filter

    $99.95
    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 . . .
  8. 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 . . .
  9. Lunt 2" polarizing filter

    $74.50
    The 2" Lunt PF-1 polarizing filter is designed for use with 2" eyepieces in the Lunt LS2HW Solar Wedge to control the image brightness during white light visual observing.
  10. LP-3 Oxygen III line band filter for 2" ep

    $159.50
    Product description coming soon . . . . . .
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