DSLR-2 M48/SP54 Filter Holder

This adapter enables mounting of Baader's 2" Astro Filters onto practically any DSLR camera lens for widefield astrophotography. It has internal M48 filter threads on one side for attaching 2" Baader Astro-Filters and external M54 threads on the same side for attachment of Baader Hyperion DT-Rings. It uses Hyperion DT Rings from 28mm to 82mm for coupling onto the camera lenses front filter threads. As a bonus, this adapter also has a standard female SCT thread (2", 24TPI) on the other side, so it can also function as an M48 female to SCT female adapter or as a M54 male to SCT female adapter.