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July 1st: Store will be closed for Canada Day. Orders placed that day will ship on July 2nd.
Celestron NexGO Universal Smartphone Adapter

Celestron NexGO Universal Smartphone Adapter

by Celestron
SKU CEL-81036
$41.95 - $41.95
$41.95
$41.95 - $41.95
$41.95
Price Match Policy!
  • Fits any eyepiece from 25.4mm to 44.45mm in diameter
  • Accommodates smartphones from 58mm to 103mm wide
  • Precise X-Y rack and pinion adjustment for fast camera alignment
  • Durable cast metal and aluminum frame for field use
  • Folds down to a compact 146mm x 120.6mm x 76.2mm for transport
7 in stock
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  • Description
  • FAQ
  • Specifications
  • In the Box
  • Downloads
  • Warranty

  • Celestron NexGO Universal Smartphone Adapter

    The Celestron NexGO Universal Smartphone Adapter connects your smartphone to any optic, clamping onto eyepieces from 25.4mm to 44.45mm in diameter and holding phones between 58mm and 103mm wide. Its rack and pinion system provides fine X-Y motion control, allowing you to precisely center your phone's camera for sharp, detailed images through your telescope, binoculars, or microscope. At just 12.8 oz, its robust metal frame provides a secure platform for your device without adding significant weight to your setup.

    Universal Fit for Eyepieces from 25.4mm to 44.45mm

    The NexGO is engineered for maximum compatibility across your optical instruments. The adjustable clamp securely grips any eyepiece with a diameter between 25.4mm (1.0") and 44.45mm (1.75"), covering standard 1.25" telescope eyepieces, and the vast majority of spotting scopes, monoculars, and binoculars. The spring-loaded phone platform expands from 58mm to 103mm, accommodating nearly any modern smartphone, often with its case still on. For smaller phones (5" tall or less), an included booster ensures a perfect fit.

    Pinpoint Centering with X-Y Rack and Pinion Knobs

    Forget the frustration of trying to manually align your phone's camera. The NexGO's key feature is its rack and pinion geared adjustment system. Once you've clamped your phone in place, two knobs give you precise, independent control over the X and Y axes, letting you smoothly slide the phone until the eyepiece's field of view is perfectly centered in your camera app. This system turns a difficult process into a 30-second task, ensuring you get the full, unvignetted view every time.

    A 12.8 oz Metal-Framed Adapter that Folds for Transport

    Built for the field, the NexGO features a cast metal frame and durable polymer body that holds your device securely, even during active use at outreach events or on a nature walk. Despite its robust construction, it weighs only 12.8 oz (362.87 g), minimizing balance issues on your telescope or mount. When not in use, the adapter folds down from its open dimensions of 196.5mm x 101.6mm to a compact 146mm x 120.6mm, easily fitting into an accessory case or backpack.

  • Will the NexGO adapter fit my iPhone 15 Pro Max or Samsung Galaxy S24 Ultra?

    Yes. The phone clamp has a range of 58mm to 103mm (2.28" to 4.06"). Both of these phones, even in a standard case, fall well within this range. The only limitation is with very bulky folio-style or battery cases, which may need to be removed.

    How do I use the NexGO with my 1.25" telescope eyepieces?

    A standard 1.25" eyepiece has an outer diameter that fits perfectly within the NexGO's 25.4mm to 44.45mm clamp range. Simply place the clamp over the top of the eyepiece and tighten the orange knob until it's secure. Then use the X-Y knobs to align your phone's camera with the eyepiece lens.

    Is the NexGO difficult to set up in the dark for astrophotography of the Moon or planets?

    No, it's one of the easiest adapters to use in the dark. The large orange clamp knob is easy to find by feel, and the X-Y adjustment knobs allow you to center the bright image of the Moon or a planet on your screen in seconds without needing perfect initial placement.

    My older, smaller smartphone camera can't reach the eyepiece. What should I do?

    The NexGO includes a smartphone booster specifically for this situation. Place the booster on the phone platform before clamping your phone in. This raises the phone, providing the extra height needed for smaller devices (typically 5" tall or less) to align properly with the eyepiece.

    At a birding event, how fast can I swap phones with the NexGO on a spotting scope?

    Swapping phones is extremely fast. The phone clamp is spring-loaded, so you can remove one phone and insert another in just a few seconds. You will likely only need minor adjustments with the X-Y knobs to re-center the new phone's camera, making it ideal for sharing views in a group setting.

    Can I take both vertical (portrait) and horizontal (landscape) photos with the NexGO?

    Yes. You can switch your image orientation by simply loosening the eyepiece clamp, rotating your phone to the desired orientation, and re-tightening. A quick readjustment of the X-Y knobs will re-center the image for your shot.

  • Compatible Optics Telescopes, Binoculars, Spotting Scopes, Monoculars, and Microscopes
    Eyepiece Clamp Range 25.4mm - 44.45mm (1.0" - 1.75")
    Phone Clamp Range 58mm - 103mm (2.28" - 4.06")
    Adjustment System X-Y Motion via Rack and Pinion System
    Materials Cast metal, reinforced plastic, aluminum
    Dimensions (Open) 196.5mm x 101.6mm x 76.2mm (7.75" x 4.0" x 3.0")
    Dimensions (Closed) 146mm x 120.6mm x 76.2mm (15.75" x 4.75" x 3.0")
    Weight 12.8 oz (362.87 g)
    Solar Warning
    Never look directly at the Sun with the naked eye or with an optic (unless you have the proper solar filter). Permanent and irreversible eye damage may result. Never use your optic to project an image of the Sun onto any surface. Internal heat build-up can damage the optic and any accessories attached to it. Never leave your optic unsupervised.
    • NexGO Universal Smartphone Adapter

      NexGO Universal Smartphone Adapter

      × 1

    • Smartphone Booster for smaller phones

      Smartphone Booster

      × 1

  • Celestron 2-Year Limited Warranty