MAIN FUNCTION: This filter is to suppresses high light and shadow contrast, reduces excessive sharpness in the area, provides a soft image without the need for retouching, and the black soft filter can give the image a hazy and soft cinematic feel. OIL STAIN : The oil stain resistant coating layer ensures a smoothly and clean of the lens, preventing stains and effectively protecting the lens. Suitable for photographers to create in harsh environments. MRC COATING: The MRC coating contains superhard metal compounds, which can prevent the filter itself from being scratched by hard objects such as gravel, ensuring that the filter can provide long term effective optical performance. APPLICABLE SCENES: This filter can be used for video shooting, portrait shooting, still life scenery and other shooting scenes. PERFORMANCE: This filter has a delicate and smoothly , like water droplets falling on the mirror , which can leave no marks like leaves and is easy to clean, making it popular among photographers.