freewell 82mm vuoto della base dell anello magnetico funziona solo con freewell magnetico alternazione rapida del sistema si prega di leggere nota

empty magnetic ring for 82 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 mag