Freewell 72mm Empty Magnetic Base Ring (Works ONLY with Freewell Magnetic Quick Swap System Please Read Note)

• NOTE:
• 1. Works only with FREEWELL MAGNETIC QUICK SWAP FILTER system will not make any THREADED filter magnetic.
• 2. Only required if you need additional each magnetic filter system comes with an empty base ring

Empty magnetic ring for 72 mm thread lenses. It is only used to attach Freewell magnetic filters. Compatible only with Freewell magnetic system. You will only need this ring if you want to have another magnetic ring available. All magnetic lens filters in the package also contain the appropriate magnetic ring. Do not change standard threaded filters to magnetic with this ring.