Cloud Break Optics

Optec-DSI 3.5x24tpi to 2” x 24tpi SCT Adapter (19913)

Optec-DSI 3.5x24tpi to 2” x 24tpi SCT Adapter (19913) - Main image
$68.4 $95 In stock

Category: Astrophotography Accessories

The Optec-DSI 3.5x24tpi to 2" x 24tpi SCT Adapter (19913) is a thread adapter designed to connect a 3.5x24tpi male thread to a male SCT 2" x 24tpi thread. It is offered by Cloud Break Optics as an astrophotography accessory.

  • Brand: Optec
  • SKU: 19913
  • Connects 3.5x24tpi male thread to male SCT 2" x 24tpi thread
  • Listed under Astrophotography Accessories
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Customer Reviews (4.8 / 5 · 5 reviews)

Benjamin ★★★★★

Threaded on smoothly right from the start, and the threads on both ends are cut cleanly—no binding at all. Used it to connect my camera setup and everything held solidly during a night of imaging.

Olivia ★★★★★

Snug fit with zero play once it's screwed onto the rear cell, and my camera now sits square to the optical axis. Machining on the 3.5x24tpi side is clean, no cross-threading even after swapping it a few times.

Claire ★★★★★

This adapter finally let me attach my older scope to my newer camera rig without any wobble. The threading is buttery smooth and the fit is snug—no light leaks at all.