I purchased this six months ago, but it has been stored in a dehumidified storage cabinet without use. I bought it on Amazon for about ¥9300 at the time. I am selling it because I am retiring from photography. Brand: K&F CONCEPT Material: Optical Glass Photo Filter Thread Size: 82 mm Coating Description: Multi-Coating Photo Filter Effect Type: ND Filter Water Resistance Level: Waterproof 【ND Filter】3-stop reduction (3 f-stops), square ND filter. Filter dimensions are 100 x 100 x 2 mm, applicable to lenses 82mm or less. It has an ND effect over the entire surface, achieving uniform light transmission. Ideal for slow shutter speed photography. *The exterior packaging may vary, but the contents are the same. 【Light Reduction ND8】While allowing for diverse expressions inherent to the lens with uniform light transmission, it enables the smooth depiction of cloud seas and flowing water in waterfalls with slow shutter speeds even in strong light environments, and the expression of light trails. (ND64 and above are recommended for strong light) 【High-Quality Optical Glass】Adopts high-quality reinforced optical glass, significantly reducing lens flare and ghosting, suppressing reflections, and allowing for the free capture of bright and colorful photos. Achieves a high transmittance of 99.6%, realizing faithful color reproduction. 【Water and Stain Repellent】The filter surface is processed with 36 layers of nano-coating, achieving water and oil repellency. You can shoot with confidence even in harsh environments such as rivers, mountains, and deserts. This product has received the German Red Dot Design Award and the iF Design Award. Please use it with confidence. * K&F CONCEPT is the world's No.1 brand in terms of lens filter online sales volume among camera-accessory-focused brands. (K&F CONCEPT is the world's No.1 brand in online lens filter sales among camera accessory brands) Source: Euromonitor, 2024 data.