The 67-112mm Magnetic Step-Up Ring from Freewell allows you to screw threaded filters onto compatible lenses or magnetically adapt Freewell magnetic filters.
Filters that have 112mm rear threads can be screwed onto lenses featuring 67mm front threads. Alternatively, for magnetic attachment, first screw this adapter onto a lens that has 67mm front threads, and then magnetically attach Freewell's 112mm magnetic filters onto the front of this adapter ring.
UPC: 785698953417