K&F Nano-X series ND8-ND128(3-7Stop) HD Hydrophobic VND Filter

 【Imported AGC Glass】Variable nd filter made by importing AGC glass, first-class filter material balancing the color batter, with no color cast and no effect for the image clarity and sharpness.* 【Self-Lock Frame, No 'X’ cross】Say goodbye to the "X" cross on images, K&F Concept utilizes cutting-edge technology to perfectly avoid the common "X" issue of variable nd filter on wide-angle and telephoto lenses.* 【NANOTEC】K&F Concept optical engineers developed multi-layer nanometer coatings (total of 28), waterproof, scratch-resistant, and anti-glaring, protecting the valued lens and presenting high-quality photos.* 【Ultra Slim Frame Avoid Vignetting】7.4mm Ultra-slim frame design utmost avoid the wide-angle vignetting (support 28mm focal length no vignetting). CNC-non-slip design helps install and remove the filter easily.* 【NOTE】This filter kit is compatible with all 37mm lenses. Please verify your camera's lens thread size before ordering. The number is always preceded by a "ø" (diameter) symbol. For the 37mm nd filter, the lens cap/hood size should be 40.5mm.