Kenko Protective Filter ZXII zxII URTH UV, ND8, ND1000, CPL Filter Kit Kenko DUTO Filter This is a 77mm diameter filter set. - Brand: Kenko, URTH - Filter Type: DUTO, Protective, ND - Filter Size: 77mm - Filter Function: UV Filter, ND Filter, CPL Filter - Included Accessories: Case I am selling these because I no longer need the 77mm diameter. ND and DUTO filters are useful for landscapes when you want a slightly softer image. URTH is an Australian brand. There are some scratches on the case and around the edges. Please take a look.