K&F Concept 37mm ND2-ND400(1-9 Stop) Filter, Variable ND

【Variable ND Filter】 Neutral Density Filter (ND2-ND400) reduce the light from 1 to 9 f-stops. • 【Japan Optical Glass & CNC Non-Slip】 Made by completed professional Japan optical glasses instead of resin. Filter reduces the intake of light without affecting the overall color balance. CNC non-slip design ensure very easy to install and remove the filter. • 【Nano Coating Layer】 Newest Nano-coating layer technology, waterproof, scratch-resistant, anti-reflective green coating, effectively prevent from oil, fingerprint, scratch, protect valued lens. • 【Professional Design】 Ultra slim rim is designed for preventing wide angle vignetting. Extra tough aviation aluminum frame ensure durability and jamming prevention. Super slim original design is to avoid vignetting when you are taking photo. • 【Tips】 This ND filter is compatible with all 37mm. Please verify your camera's lens thread size (usually marked somewhere on the lens barrel or printed underneath the lens cap) before ordering. The number is always preceded by a "ø" (diameter) symbol.