This adapter consists of a female 2" Schmidt-Cassegrain thread on one end and a male M42 x 0.75 thread on the other. Optical thickness of the adapter is 8mm.
This is very useful for connecting accessories such as filter drawers or filter wheels to Schmidt-Cassegrain correctors/reducers.
|Connection side A
||Female 2" SC thread
|Connection side B||Male M42 x 0.75 (T2)