Ulanzi HP-016 MagFilter Adapter Ring for O-Lock Phone Cases (52mm)

The HP-016 MagFilter Adapter Ring for O-Lock Phone Cases from Ulanzi quickly and easily attaches to the O-Lock phone cases for select model iPhones, allowing a 52mm MagFilter to be mounted in a snap. This lightweight filter adapter is made of rugged aluminum alloy, and its slim design keeps your shooting rig compact while preventing vignetting.