- The magnetic 90mm ND round filter fits perfectly into the recess in the K9 filter holder. This allows you to add more rectangular filters in the filter slots of the K9 filter holder.Due to the magnetism, the magnetic ND1000 filter is very easy to assemble and can be removed just as quickly.The ND 1000 has a nano glass coating and is made of aluminum and optical glass.
Kase Wolverine magnetic ND1000 90mm Round Filter for K9 Filter Holder
$192.50Price