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July 1st: Store will be closed for Canada Day. Orders placed that day will ship on July 2nd.
Celestron Aluminum Dew Shield with Cover Cap - 9.25"
Celestron Aluminum Dew Shield with Cover Cap - 9.25"
Celestron Aluminum Dew Shield with Cover Cap - 9.25"
Celestron Aluminum Dew Shield with Cover Cap - 9.25"
Celestron Aluminum Dew Shield with Cover Cap - 9.25"
Celestron Aluminum Dew Shield with Cover Cap - 9.25"
Celestron Aluminum Dew Shield with Cover Cap - 9.25"
Celestron Aluminum Dew Shield with Cover Cap - 9.25"
Celestron Aluminum Dew Shield with Cover Cap - 9.25"

Celestron Aluminum Dew Shield with Cover Cap - 9.25"

by Celestron
SKU CEL-94022
CA$292.00 - CA$292.00
CA$292.00
CA$292.00 - CA$292.00
CA$292.00
Price Match Policy!
  • Extends 14.4" to prevent dew formation on 9.25" SCT & EdgeHD corrector plates
  • Blocks stray light to improve image contrast for visual and imaging
  • Rigid aluminum construction weighs only 2.6 lbs
  • Velvet-lined interior absorbs moisture and stray reflections
  • Includes a 12.8 oz aluminum cover cap for dust protection and dark frames
  • Features a 1.25" x 1.5" slot for cable management
2 in stock
Qualifies for FREE Shipping in Canada on orders over $500.
  • Description
  • FAQ
  • Specifications
  • In the Box
  • Warranty

  • Celestron Aluminum Dew Shield with Cover Cap - 9.25"

    The Celestron Aluminum Dew Shield for 9.25" telescopes provides a rigid, 14.4" long barrel to protect your corrector lens from dew and stray light. This essential accessory measures 11" in diameter to perfectly match your optical tube and weighs a solid 2.6 lbs. It includes a separate 12.8 oz aluminum cover cap for dust protection and makes taking dark frames simple and repeatable.

    Dual-Purpose Shielding: 14.4" of Dew and Stray Light Protection

    This shield's primary function is to slow the radiative cooling of your Schmidt corrector plate, keeping its surface temperature above the dew point for longer. By extending 14.4" from the front of your telescope, it physically blocks your optics from the cold night sky. This same extension also acts as a lens hood, preventing off-axis light from nearby sources from entering the optical path and reducing image contrast.

    A Rigid 2.6 lb Aluminum Build with Velvet Lining

    Unlike flexible plastic shields that can deform or sag, this dew shield is constructed from a solid aluminum cylinder that maintains its shape. The total weight of 2.6 lbs adds stability without significantly altering your telescope's balance point. The interior is fully lined with black velvet, which absorbs any internal reflections and traps excess moisture, ensuring your images have the darkest possible background.

    Integrated Cable Management and 12.8 oz Dark Frame Cap

    Designed for the modern astroimager, a 1.25" wide by 1.5" long slot is built into the shield's base. This provides a clean exit path for cables from front-mounted accessories like dew heater rings or a HyperStar system, preventing snags and light leaks. The included 12.8 oz aluminum cover cap fits securely over the shield's opening, protecting your optics from dust when idle and providing an opaque cover for capturing high-quality dark frames.

  • Will the Celestron 9.25" Dew Shield fit non-Celestron telescopes?

    This dew shield is specifically designed for the 11" tube diameter of Celestron 9.25” Schmidt-Cassegrain and EdgeHD telescopes. While it might fit other 9.25" SCTs with a similar tube diameter, a perfect fit is not guaranteed due to potential variations in tube hardware and dovetail placement.

    How does the cable management slot on this Dew Shield work?

    The 1.25" x 1.5" slot is located at the base of the shield. It allows you to run cables from accessories like a dew heater ring or a HyperStar camera along the telescope tube and out through the shield. This prevents the cables from dangling in front of the corrector plate where they could cause diffraction or get snagged.

    Is an aluminum dew shield better than a flexible plastic one?

    An aluminum shield offers superior rigidity. It will not flex, sag into the light path, or deform over time. The solid construction also provides better protection against accidental bumps. The trade-off is a slight increase in weight, with this model weighing 2.6 lbs.

    How useful is the Aluminum Dew Shield for imaging the Andromeda Galaxy (M31) from my backyard?

    For a large, faint target like the Andromeda Galaxy (M31), maximizing contrast is critical. This dew shield improves contrast by blocking stray light from streetlights or house lights, resulting in a darker sky background and making the faint outer arms of the galaxy more visible. It also prevents a dewed-up corrector from ending your imaging session prematurely.

    Can I still use my top and bottom dovetail bars on my Celestron 9.25" SCT with this dew shield attached?

    Yes. The dew shield has cutouts designed to accommodate the standard dovetail rails located on the top and bottom of Celestron 9.25" optical tubes. The two attachment clips are positioned to provide a secure fit without interfering with this hardware.

    What is the purpose of the included cover cap for the dew shield?

    The 12.8 oz aluminum cover cap serves two main purposes. First, it protects your telescope's corrector plate from dust and debris when the telescope is not in use. Second, it provides a light-tight seal over the front of the telescope, which is essential for taking accurate dark calibration frames for astrophotography.

  • Material Aluminum with plastic attachement clips, interior velvet lined
    Cover Cap Aluminum - included
    Total Weight 2.6 lbs (1.18 kg)
    Dimensions 11" (279.4mm) diameter x 14.4" (365.76mm) long
    Cable Management Slot 1.25" (31.75mm) wide x 1.5" (38.1mm) long
    Cover Cap Weight 12.8 oz (362.87 g)

    • Aluminum Dew Shield - 9.25"

      × 1

    • Aluminum Cover Cap

      × 1

    • Celestron Logo Labels

      × 2

  • Celestron 2-Year Warranty