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Celestron Lunar and Planetary Filter Set - 1.25"
Celestron Lunar and Planetary Filter Set - 1.25"
Celestron Lunar and Planetary Filter Set - 1.25"

Celestron Lunar and Planetary Filter Set - 1.25"

by Celestron
SKU CEL-94119-10
$55.00 - $55.00
$55.00
$55.00 - $55.00
$55.00
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  • Four essential 1.25" planetary filters: #12 Deep Yellow, #21 Orange, #80A Blue, and ND-96-0.3
  • Enhances specific details on the Moon, Mars, Jupiter, and Saturn
  • Neutral Density filter reduces brightness without altering color
  • Each filter features a 26mm clear aperture and anti-reflection coatings
  • Double-threaded cells allow for stacking filters
  • Includes a hard plastic case for safe storage
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  • Description
  • FAQ
  • Specifications
  • In the Box
  • Warranty

  • Celestron Lunar and Planetary Filter Set - 1.25"

    The Celestron Lunar and Planetary Filter Set groups four essential 1.25” filters to reveal specific surface and atmospheric details that are often invisible without them. This kit includes a #12 Deep Yellow, #21 Orange, #80A Blue, and an ND-96-0.3 Neutral Density filter, each with a 26mm clear aperture and anti-reflection coatings. The double-threaded aluminum cells allow you to stack filters, giving you advanced control over the light reaching your eyepiece.

    #12 Deep Yellow: A 1.25" Filter for General Planetary and Lunar Contrast

    The #12 Deep Yellow filter is an excellent starting point for enhancing contrast, particularly in telescopes with apertures under 4.5 inches. On the Moon, it darkens the blue-tinted maria, making subtle rilles and crater rays stand out more clearly. For planetary observers, this filter improves the visibility of equatorial belts on Jupiter and Saturn and helps define the polar ice caps and cloud structures on Mars.

    #21 Orange & #80A Blue: High-Contrast Filters for Jupiter and Mars

    This set includes two filters targeted at specific planetary features. The #21 Orange filter is a powerful tool for Mars, sharpening the boundaries between its reddish-orange deserts and darker plains by blocking blue and green wavelengths. The #80A Blue filter excels at enhancing contrast within the cloud belts of Jupiter and highlighting the delicate structure of Saturn's polar regions and rings.

    ND-96-0.3 Neutral Density: Taming Lunar Glare and Splitting Double Stars

    Observing the Moon at high magnification can be uncomfortably bright, washing out fine detail. The ND-96-0.3 filter reduces overall brightness without changing the Moon's natural color, allowing your eye to perceive more subtle surface features. This filter is also invaluable for separating close binary stars, as it can dim the brighter primary star just enough to reveal its fainter companion.

    26mm Clear Aperture: Stacking Filters for Custom Transmissions

    Each filter is mounted in a black anodized aluminum cell with a 26mm clear aperture, ensuring no vignetting with standard 1.25" eyepieces. The cells are threaded on both sides, a critical design choice that allows you to stack filters. For example, you can combine the ND-96-0.3 filter with one of the color filters to simultaneously reduce brightness and boost contrast on a bright target like Jupiter.

  • Which filter in the Celestron Set is best for observing Jupiter's Great Red Spot?

    The #80A Blue filter is the most effective choice in this set for enhancing the visibility of Jupiter's Great Red Spot. It increases the contrast between the reddish storm system and the surrounding lighter cloud zones.

    How do I attach a filter from the Celestron Lunar and Planetary Filter Set to my eyepiece?

    All filters in this set are designed for 1.25" eyepieces. Simply screw the filter into the threads on the bottom barrel of your eyepiece. You can then insert the eyepiece into your telescope's focuser as usual.

    Can I use the #12 Deep Yellow filter from this set on Mars with a 3" refractor?

    Yes, the #12 Deep Yellow is an excellent choice for smaller aperture telescopes (less than 4.5"), making it a good match for a 3" refractor. It will help bring out details in the Martian polar ice caps and any potential cloud formations.

    What does "stacking" filters mean with the Celestron 1.25" Filter Set?

    Because each filter cell is double-threaded, you can screw one filter directly onto another. This allows you to combine their properties. For instance, stacking the ND-96-0.3 filter with the #21 Orange filter would reduce Mars's overall brightness while still sharpening surface details, which can be useful in larger telescopes.

    Why is a Neutral Density filter included in the Celestron Planetary Filter Set?

    The ND-96-0.3 Neutral Density filter is primarily for lunar observation. A full or quarter Moon can be overwhelmingly bright, causing eye strain and hiding detail. The ND filter dims the view to a more comfortable level. It is also useful for splitting unequal binary stars, where the glare from the brighter star can hide its companion.

    Will these filters work with a 2" eyepiece?

    No, this Celestron filter set is specifically designed with 1.25" filter threads and will only attach to 1.25" eyepieces and accessories. They are not large enough to be used with 2" eyepieces.

  • Filter Size 1.25"
    Clear Aperture 26 mm
    Included Filters #12 Deep Yellow, #21 Orange, #80A Blue, ND-96-0.3
    Cell Material Black Anodized Aluminum
    Threads Double-threaded for stacking
    Coatings Anti-reflection, anti-ghosting, scratch-resistant
    Warranty 2-Year Warranty

    • #12 Deep Yellow Filter (1.25")

      × 1

    • #21 Orange Filter (1.25")

      × 1

    • #80A Blue Filter (1.25")

      × 1

    • ND-96-0.3 Neutral Density Filter (1.25")

      × 1

    • Plastic Carrying Case

      × 1

  • Celestron 2-Year Warranty