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A silver metal cylinder with a threaded 1.25 inch barrel and camera mount end

Celestron

Celestron 1.25" T-Adapter for 35mm SLR

SKU CH-F63X-2P59G

Connects a 35mm SLR to any 1.25" telescope focuser for prime-focus astrophotography

  • Product typeAccessory
  • Connect 35mm SLR cameras to 1.25" telescope focusers for prime-focus astrophotography
  • Universal 1.25" barrel fits any telescope with standard 1.25" focuser or visual back
  • Transforms telescope into high-power telephoto lens for detailed celestial imaging
  • Requires matching T-Ring to complete camera-to-telescope connection
  • Essential accessory for astronomy enthusiasts and photographers capturing distant landscapes

Universal 1.25" T-Adapter for 35mm SLR

The Celestron 1.25" T-Adapter connects a 35mm SLR camera to any telescope with a 1.25" focuser or visual back. It enables prime-focus astrophotography by turning the telescope into a telephoto lens. A separate T-ring matched to your camera mount is required to complete the connection.

Astrophotographers using 35mm SLR bodies

This adapter suits owners of 35mm SLR cameras who want to shoot through a 1.25" telescope focuser. It will not work with cameras that lack a removable-lens mount or with telescopes that only accept 2" accessories. Users of mirrorless or digital SLR bodies need the correct T-ring for their specific mount.

1.25" barrel diameter

The single specification that decides fit is the 1.25" barrel diameter, which matches standard 1.25" focusers and visual backs. If your telescope uses a different focuser size, this adapter cannot be used. No other dimensions or thread pitches are provided.

How it compares

Measured against everything we stock in Binoculars, Scopes & Sights, at today’s prices. Recalculated every night.

Price $30.99
Cheaper than about 77% of the 1,401 comparable items (median $93.99).

Specifications

Product
Brand nameCELESTRON
Product typeAccessory

Questions about this item

What does the 1.25" size mean when I attach it to my telescope?

The 1.25" barrel slides into any focuser or visual back that accepts 1.25" eyepieces, letting the adapter sit at the telescope's prime focus.

What interface does the camera side use, and what does that limit?

The camera side has a male T-thread that accepts a brand-specific T-ring; without the correct T-ring for your 35mm SLR the camera cannot mount.

What physical clearance or mounting space does this adapter need?

It adds roughly 25 mm of back-focus beyond the focuser drawtube, so the telescope must be able to reach focus with that extra distance.

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