365Astronomy Variable T-2 Extension Tube for SC Telescopes - 53mm Optical Length
Variable length T-2 extension tube for SCT - Schmidt-Cassegrain Telescopes (52mm optical length).
7.6mm + 15mm + 30mm = appr. 52.6mm overall optical length
In one kit, you get a 15mm T-2 extension tube, a 30mm T-2 extension tube and an Ultra-short SC T-adapter, all these would usually cost nearly £60 if purchased separately...
Male T-thread on one end and female SC-thread on the other end.
This item is part of the f/3.3 reducer kit:
We are usually stocking it now!