Comments about Epoque Epoque 67mm Conversion Lens Adapter Ring:
Good quality adapter that fits the back of the Epoque lens as designed. In my case, the existing screws wouldn't move (seized) so I drilled the heads off, ground the stubs flat, rotated the ring, redrilled and tapped the lens body, and mounted the new adapter. Lens now works fine on my Olympus c-5050 housing.