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  1. 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 . . .
  2. #38A Dark blue 1.25" Series 4000 color filter

    $14.95
    Recommended applications for this filter:
    Moon - Somewhat useful for improving contrast between lunar features in scopes 8" and larger. Mercury - May improve observations of rarely visible dusky surface features at twilight, when the planet is near the horizon. Venus - Increases contrast of occasional faint dark shadings in upper Venusian clouds. Mars - Useful . . .
  3. 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 . . .
  4. Antares 2" #ND9 13% Transmission neutral density grey Moon filter

    $19.95
    This Antares 2" 13% transmission neutral gray filter reduces the brightness and glare that can mask low contrast details during lunar and planetary observing . . .
  5. Variable polarizer for imaging with 3.5" and 7" Questars

    $495.00
    This Questar variable polarizing assembly allows you to control the effective f/stop of a Questar telescope during terrestrial and lunar prime focus imaging.
  6. Astro-Tech 2" CrystalView Moon Filter

    $19.95

    This Astro-Tech 2” 13% transmission neutral gray filter reduces the brightness and glare that can mask low contrast details during lunar and planetary observing . . .

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