Just another small, but very useful adapter:

Use your Astronomik EOS APS-C Clip-Filters with all your eyepieces! The new M48x0.75 (male) to Astronomik EOS APS-C Clip-Filter Adapter accepts your Clip-Filters and offers you the standard M48 thread for 2" filters. Clip your filter into the adapter and use it with all eyepieces, prisms, mirrors or reducing adapters from 2" to 1.25".

For a very small investment you get a vast range of applications for your Astronomik Clip-Filters.

M48x0.75 thread (normal thread for 2" filters)

Other side for Astronomik EOS APS-C Clip-Filters