【Variable ND & CPL filter in 1】One filter has the ND and CPL filter features, it can not only control the amount of light entering the lens to darken skies but also avoid unwanted reflections coming from non-metallic, such as water, and glass. Enhance the color and contrast. | 【No “X” Cross on Images】The filter framme adopts self-locking technology and rotates infinitely between 1 and 5 stops(ND2-32), which facilitates the positioning of light reduction. It also avoids the phenomenon of producing black crosses. | 【Imported AGC Optical Glass】Made by importing AGC optical glass, 24 multi-layer coating waterproof, no color shift and ensures high definition image quality. | 【Putter Filter Frames】The frame is designed with a pusher, which makes it easy for customers to adjust the number of the stops, and for those who shoot video, it helps to automatically adjust the stops for light reduction with the help of an auxiliary tool. | 【Note】This filter is compatible with all 52mm lenses. Please verify your camera's lens thread size before ordering. The number beside a "ø" (diameter) symbol. Additionally, a 58mm lens cap is required for this 52mm variable ND filter.