Takahashi 2″ Adapter for Original EXT‑Q (TKA00596)

Takahashi 2″ Adapter for Original EXT‑Q (TKA00596)

This precision-machined 2″ adapter is designed to thread securely onto the visual section of the Original Takahashi Extender-Q (TEQ0002), allowing the use of full-diameter 2″ eyepieces or 2″ refractor star diagonals. It installs with minimal profile and features dual thumbscrews to firmly clamp accessories without risking slippage or misalignment.

Crafted from black-anodized aluminum with Takahashi’s characteristic attention to tolerances, the TKA00596 seamlessly integrates with the Extender-Q. Its solid, no-play fit supports heavy diagonals or large oculars with confidence—ideal for refractor users upgrading rigidly between imaging, planetary, and deep-sky configurations.

Community Insight from Cloudy Nights

Discussions around Extender-Q users emphasize the importance of this adapter’s thumbscrew design: users report that the dual-chrome thumbscrews “provide a rock-solid clamp on my Tele Vue Radian 2″ eyepiece,” and say it “eliminates vibration when swapping heavy diagonals”—a small detail that improves both optical performance and observing comfort.

Observing Tip

If you're switching between heavy 2″ diagonals and eyepieces with custom imaging trains, tighten the adapter thumbscrews after each insertion to avoid rotational shifting during focus changes. Its firm hold can also stabilize setups during long-exposure astrophotography or extended visual sessions.