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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.
Celestron T-Adapter, NexStar 4SE
Celestron T-Adapter, NexStar 4SE
Celestron T-Adapter, NexStar 4SE

Celestron T-Adapter, NexStar 4SE

by Celestron
SKU CEL-93635-A
$35.00 - $35.00
$35.00
$35.00 - $35.00
$35.00
Price Match Policy!
  • Connects DSLR and SLR cameras to NexStar 4SE or C90 telescopes
  • Enables prime focus photography for celestial and terrestrial objects
  • Threads directly onto the telescope's rear cell for a secure fit
  • Sturdy, single-piece aluminum construction
1 in stock
Qualifies for FREE Shipping in CONUS on orders over $350.
  • Description
  • FAQ
  • Specifications
  • In the Box
  • Downloads
  • Warranty

  • Celestron T-Adapter, NexStar 4SE

    This sturdy aluminum Celestron T-Adapter for the NexStar 4SE is the essential accessory for attaching your SLR or DSLR camera to a Celestron NexStar 4SE telescope or C90 spotting scope. It allows you to use your telescope as a powerful telephoto lens, enabling prime focus photography of the Moon, planets, and terrestrial subjects. The adapter provides a secure, direct-threaded connection between your telescope and the camera-specific T-Ring, ensuring a stable imaging platform.

    Direct-Thread Attachment for NexStar 4SE & C90 Scopes

    Designed specifically for the smaller rear cell threads of the NexStar 4SE Maksutov-Cassegrain and the C90 spotting scope, this T-Adapter ensures a perfect fit. Unlike universal adapters that can introduce flexure or vignetting, this component threads directly onto your scope's rear cell, creating a rigid connection that is critical for sharp, prime-focus images.

    A Simple, Secure All-Metal Connection for Your Camera

    Getting started is straightforward. After removing the lens from your DSLR or SLR, attach the appropriate T-Ring for your camera brand (sold separately). The T-Adapter then screws onto the rear of your telescope, and the T-Ring with your camera attached threads directly onto the adapter. The result is an all-metal, secure imaging train with no weak points.

    • Sturdy Aluminum Body: A single piece of machined aluminum prevents any flexure or wobble that could compromise your images.
    • Simple Installation: Just remove any existing visual back or accessory, screw on the T-Adapter, and then attach your camera and T-Ring.
    • Required T-Ring: You will need a T-Ring that matches your camera's lens mount (e.g., Canon EOS or Nikon F-mount) to complete the connection.

    Prime Focus Imaging: Turn Your NexStar 4SE into a 1325mm Telephoto Lens

    Prime focus photography places your camera's sensor directly at the telescope's focal plane, using the main optics as your camera lens. This method is ideal for capturing detailed, short-exposure images of bright objects. With the NexStar 4SE's long focal length, you can achieve high-magnification shots that are impossible with standard camera lenses.

    This setup excels for capturing sharp craters on the Moon, distant wildlife, or other terrestrial scenes. The direct connection maximizes light transmission and image contrast, delivering results that are limited only by the seeing conditions and your camera's capabilities.

  • What do I need to attach my Canon DSLR to a NexStar 4SE with this T-Adapter?

    You will need this Celestron T-Adapter for the NexStar 4SE and a separate T-Ring for Canon EOS cameras (model #93419). The T-Ring attaches to your camera body in place of the lens, and then it threads onto this T-Adapter.

    How do I use the NexStar 4SE T-Adapter to photograph the Moon?

    First, attach your camera to the telescope using the T-Adapter and a T-Ring. Point the telescope at the Moon and achieve a rough focus using the telescope's focuser while viewing through your camera's live view screen. For the sharpest results, use your camera's digital zoom on live view to fine-tune the focus on a prominent crater before taking short-exposure images.

    Is this Celestron T-Adapter compatible with larger Celestron SCTs like an 8"?

    No, this T-Adapter is specifically designed for the smaller rear cell threads found on the NexStar 4SE and the C90 Spotting Scope. Larger Schmidt-Cassegrain telescopes require a different T-Adapter that fits the standard 2" SCT rear cell threads.

    Can I use eyepieces with the NexStar 4SE T-Adapter for higher magnification?

    No, this adapter is for prime focus photography only, where the telescope acts as the lens. It does not allow for eyepiece projection. For that, you would need a different type of universal or variable projection adapter.

    What kind of photography is the Celestron T-Adapter for NexStar 4SE best for?

    It is ideal for short-exposure photography of bright subjects. This includes detailed images of the lunar surface, planetary shots (though this is challenging), and terrestrial subjects like wildlife or distant landscapes. It is not intended for long-exposure deep-sky astrophotography.

    Is the T-Adapter for the NexStar 4SE made of plastic or metal?

    The T-Adapter is made from sturdy, machined aluminum to provide a rigid, flex-free connection between your telescope and camera, ensuring your images are as sharp as possible.

  • Compatibility Celestron NexStar 4SE Telescope, C90 Spotting Scope
    Camera Connection Requires camera-specific T-Ring (sold separately)
    Telescope Connection Threads onto rear cell of NexStar 4SE / C90
    Photography Type Prime Focus
    Material Aluminum
    Warranty 2-Year Warranty

    • T-Adapter for NexStar 4SE / C90

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  • Celestron 2-Year Warranty