Kenko PRO1D SMART VARIABLE NDX II 49mm Variable ND Filter. Used a few times, with no noticeable scratches. [An essential for video shooting! A variable ND filter that instantly adjusts brightness] This is a variable density ND filter that can instantly adjust the brightness when the brightness changes significantly during a single shoot, or when there is a difference in light intensity caused by scene changes during video shooting. [Improved flatness for increased resolution!] Compared to the previous model (PRO1D Smart Variable NDX), the flatness of the glass has been improved, resulting in increased resolution. [Can be used evenly up to ND32!] When the focal length of the lens is 24mm, you can use it evenly up to ND32 equivalent without X-shaped unevenness. (Varies depending on the focal length of the lens used.) [Water-repellent and oil-repellent coating repels dirt!] It has a water-repellent and oil-repellent coating, which is reliable for outdoor shooting. You can quickly wipe away water and dirt. ■ Filter diameter: 49mm (lens mounting side) / 52mm (lens cap mounting side) ■ Country of origin: Japan #kenko #ND filter