FREEWELL Step Up Filter-Adapter-Ring 72mm-82mm (Works with Freewell Magnetic Quick Swap as well as your threaded filter)

What problems does it solve? Step-Up Rings are widely used, but unlike other rings, this innovative Step-Up Ring from Freewell is both a magnetic and threaded filter system, so you can now use both Freewell magnetic filters and your threaded filters in a folding ring. Built: Made of CNC machined aluminum with black paint to prevent reflections or leaks while taking photos. How do I find the size of my filter wire? The size of your lens wire is pressed under your lens cap or written somewhere on the lens cylinder. Please make sure you order the correct size, otherwise it will not fit your camera lens. Compatibility: compatible with all 72mm camera lenses and 82mm accessories.