The new Kenko Instant Action magnetic system allows you to use the filters without the chore of permanent screwing/unscrewing. Screw the ring provided in the set onto your lens and your filter will be attached directly without magnetism screwing it. Instant Action filters are available in many types, UV, Protector and C-PL, for example, just one ring is enough to use your Instant Action filters, you can even combine several filters on one ring. KENKO filters are manufactured in Japan according to strict specifications and meet high optical performance requirements, KENKO brand in Japan is renowned for the quality of its products.