The Freewell Magnetic Step-Up Ring (67-77mm) lets you attach threaded filters to compatible lenses or magnetically adapt Freewell magnetic filters.
Filters with 77mm rear threads can be screwed onto lenses with 67mm front threads. For magnetic attachment, first screw this adapter onto a lens with 67mm front threads, then magnetically attach Freewell’s 77mm magnetic filters to the front of the adapter ring.
