Eindkap voor QuadTCC voor TEC-telescopen (S35RFAA)

Installing this endcap was a breeze, and it solved the backfocus issue I was worried about with the QuadTCC. The threading feels precise and snug, which gives me confidence it won't loosen during a session.

The threading on this endcap matched perfectly with my drawtube, and the included backfocus spacer was exactly the right length for my setup. It feels solidly machined and locks in place without any play, which is crucial for keeping the optics aligned.

Snapped right onto the drawtube threads with no wobble, which is exactly what I wanted for keeping dust off the QuadTCC backfocus spacer between sessions. Fit is snug enough that I don't worry about it slipping off in the dark.