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IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
Celestron T-Ring for Canon EOS Camera
Celestron T-Ring for Canon EOS Camera

Celestron T-Ring for Canon EOS Camera

by Celestron
SKU CEL-93419
$16.95 - $16.95
$16.95
$16.95 - $16.95
$16.95
Price Match Policy!
  • Connects Canon EOS-EF Mount DSLR/Mirrorless cameras to telescopes
  • Replaces the camera lens for direct, secure attachment
  • Enables prime focus astrophotography through your telescope
  • Standard T-threads accept a wide variety of telescope T-adapters
  • Required for imaging the Moon, planets, and deep-sky objects
2 in stock
Qualifies for FREE Shipping in CONUS on orders over $350.
  • Description
  • FAQ
  • Specifications
  • In the Box
  • Warranty

  • Celestron T-Ring for Canon EOS-EF Mount Camera

    The Celestron T-Ring for Canon EOS-EF Mount Cameras is the foundational accessory for connecting your camera body directly to a telescope, enabling you to capture high-resolution images of the Moon, planets, and deep-sky objects. This T-Ring securely replaces your standard camera lens, converting your Canon EOS camera body into an interchangeable imaging system for your telescope with a 2-Year Warranty.

    The Essential Adapter for Canon EOS Astrophotography

    If you own a Canon EOS camera, this T-Ring is the first and most critical component for prime focus astrophotography. By attaching it in place of a camera lens, you create a solid, threaded connection point. This allows your telescope to function as a massive telephoto lens, projecting its image directly onto your camera's sensor for the cleanest possible signal path.

    Choosing the Right T-Adapter for Your Telescope

    Once the T-Ring is on your camera, the telescope side features standard T-threads that connect to a separate T-adapter (sold separately). The correct T-adapter depends entirely on your telescope's design, as different optical systems have unique requirements for reaching focus.

    • Schmidt-Cassegrain Telescopes (SCTs): For standard Celestron SCTs, the #93633-A T-Adapter threads directly onto the rear cell.
    • Refractors & Spotting Scopes: The Universal T-Adapter (#93625) with its 1.25” barrel is the standard choice for these instruments.
    • EdgeHD Optical Systems: These flat-field systems require specific T-adapters to maintain their optical correction, such as the #93644 for the 8-inch EdgeHD or the #93646 for the 9.25, 11, and 14-inch models.

  • What is the purpose of the Celestron T-Ring for Canon cameras?

    The T-Ring is a mechanical adapter that allows you to attach your Canon EOS camera body to a telescope. It replaces your camera's lens and provides a standardized threaded connection (called a T-thread) that can then be attached to a telescope-specific T-adapter.

    Do I need anything besides this T-Ring to connect my Canon EOS to my telescope?

    Yes. The T-Ring is the first part of a two-part system. You will also need a T-adapter that matches your specific telescope (e.g., an SCT T-adapter, an EdgeHD T-adapter, or a universal 1.25" T-adapter for refractors). The T-Ring attaches to your camera, and the T-adapter attaches to the T-Ring and your telescope.

    How do I use the Celestron T-Ring to photograph the Orion Nebula (M42) with my 8" SCT?

    First, remove the lens from your Canon EOS camera and attach the T-Ring. Then, thread the Celestron #93633-A T-Adapter for SCTs onto the T-Ring. Finally, unthread the visual back from your telescope's rear cell and screw the T-adapter/T-Ring/camera assembly directly onto the telescope. You are now set up for prime focus imaging of M42.

    Will this T-Ring work with Canon EF-S mount cameras?

    Yes, the Canon EF mount is physically compatible with both EF and EF-S lenses and camera bodies. This T-Ring will attach to any Canon EOS camera that uses this mount, including both full-frame (EF) and APS-C (EF-S) models.

    Can I use autofocus with the Celestron T-Ring attached?

    No. When you attach your camera to a telescope via a T-Ring, the telescope itself becomes the lens. There are no electronic connections to control autofocus. You must achieve focus manually using your telescope's focuser knob while viewing the image on your camera's live-view screen.

    What kind of photos can I take with the Celestron T-Ring?

    This setup is ideal for "prime focus" photography. It is excellent for short-exposure images of the Moon and brighter planets. With an equatorial mount that tracks the sky, you can also take longer exposures needed to capture deep-sky objects like galaxies and nebulae.

  • Camera Mount Canon EOS (EF Mount)
    Telescope Connection M42x0.75 T-Threads
    Warranty 2-Year Warranty

    • Celestron T-Ring for Canon EOS-EF Mount Camera

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  • Celestron 2-Year Warranty