K&F CONCEPT VARIABLE HMC ND2-400 Lens Cap 67mm 【NANO-K Variable ND Filter】The K&F CONCEPT ND2-ND400 variable ND filter allows for adjustment of light reduction in 9 steps, from ND2 to ND400, and the density of the neutral density filter can be adjusted as needed to adapt to various lighting environments. (️This variable ND filter is not suitable for use with telephoto lenses. A lens hood cannot be attached.) The exterior may be a mix of old and new designs, but the contents are the same. 【18-Layer Coating】The variable ND filter is made of high-quality optical glass with 18 layers of transparency-enhancing coating on both sides, which can effectively reduce reflected light on the filter surface. 【Self-Developed Lens Cap】Comes with a high-quality lens cover, adopting an innovative non-spring structure to avoid problems such as spring deterioration. The inner structure design allows it to fit various lenses. 【Includes Vacuum-Packed Cleaning Cloth】The included cleaning cloth uses microfiber and will not damage the coatings of optical equipment such as lenses and lens filters. It can also thoroughly remove stubborn oil film and sebum stains. The condition is good as it has been used very little. K&F CONCEPT VARIABLE ND filter K&F CONCEPT ND filter 67mm Variable ND filter