F8 Visual Extension Tube (TKP00106)

The threads on this extension tube are buttery smooth, and it couples perfectly with my existing setup. I noticed zero play or light leaks even with a heavy camera attached. This solved a back-focus issue I've been chasing for weeks.

Finally got this attached to my setup and the fit is absolutely precise—threads engage smoothly without any play. The anodized finish matches perfectly with the rest of the optical train. It just feels solid.

Took this out under a clear sky last night and the fit onto my focuser was perfect—no slop at all. It’s noticeably stiffer than my old tube, which I actually like for keeping everything locked in place during long exposures.