Adapter with SC female thread and M48 male thread

This adaptor fits on almost all Schmidt-Cassegrain telescopes, many Maksutov-Cassegrains, and also several other instruments and setups with SC male thread (UNC 2"-24). On the other side it offers the M48 male thread (2" filter thread).

The adaptor can be used to attach accessories with 2" filter thread to instruments with SC thread:

-- adaptation of the TS Off Axis Guider 9mm or the TS Off Axis Guider 27mm to SC telescopes.
-- adaptation of some 2" star diagonals to instruments with SC thread
-- straight-through adaptation of 2" eyepieces to telescopes with SC thread