【Variable ND & CPL & Black-Mist Filter 3-in-1】A filter has the characteristics of ND, CPL, Black-Mist filter, not only can control the amount of incoming light, but also reduce reflections coming from non-metallic superfecie, and soften lights, reduce contrast. It is great for portrait photography, video.
【Reduce Light 1-5 Steps】The filter is a variable neutral density filter that allows you to reduce exposure by 1 to 5 steps. The density intensity is easily controlled by rotating the outer ring, performing a smooth density transition allowing the photographer or videographer to adjust the exposure exactly to the required amount that the scene demands.
【28 Layers of Nano Coating】K&F Concept optical engineers developed multi-layer nanometric coatings (a total of 28), waterproof, scratch-resistant and anti-glare, protecting the valuable lens and presenting high-quality photos
【Ultra-thin Copper Frame】 The frame is very slim. There are 5 f-Stops from Mini to ND32 in the frame. You should confirm what the ND filter stops. With this filter, no "X" parton at focal length greater than 35mm.