ITEM NAME:67mm Double Thread Circular Polarising Filter-CPL For Nikon EF 70-200mm K8G2 67mm Double Thread Circular Polarising Filter-CPL For Nikon EF 70-200mm K8G2 X1B2 The filter could limit the reflection from nonmetal surface such as water and glass windows Colors shall become brighter and clearer when using the filter Color:Black For black and white photo taking,the effects are the same with Y(K2) and O(G) Using together with R(25A),the infrared effects shall be better Specifications: Dimensions: Internal diameter:67mm Material:Made of metal (not plastic) Package Included: 1 x Polarizer Mirror Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.