A circular polarizer filter (CPL) is generally required if you want to use the "auto-focus" feature in your camera. A polarizing filter removes unwanted reflections from non-metallic surfaces such as water and glass. They also enable colors to become more saturated and appear clearer， with better contrast. Additionally， this Kenko 62mm CPL filter allows picture and video cameras (which have fixed shutter speeds) to film subjects such as snow， sand or other bright scenes that can cause overexposure. Time is running out! Don’t delay!                                    Features             The filter could limit the reflection from non-metal surface such as water and glass windows<br> Colors shall become brighter and clearer when using the filter<br> For black and white photo taking，the effects are the same with Y(K2) and O(G)<br> Using together with R(25A)，the infrared effects shall be better<br>                                                            Specifications             Dimensions    2.44 " /62mm     <br> Weight     68g/ 2.4oz    <br> Color     Black     <br>                                                             Package Includes            1 x Kenko 62mm CPL Circular Polarizing Filter<br>