This handy adapter from Baader features a continuous male 2″-24 Schmidt Cassegrain thread, as well as an M48 x 0.75 female thread on the inside for connecting a 2″ filter.

There are many instances where one needs to convert a female 2″ SCT thread to male,and this adapter solves the problem. You can also convert accessories with a 2″ SCT thread to an M48 connection.

Specifications