K&F Concept 72mm Variable ND Filter ND2 - ND400 Adjustable Fader Neutral Density, Ultra Slim Waterproof Multi Coating Optical Glass Lens Filter(Nano-K Series)

【High-end Optical Glass】K&F Concept variable neutral density filter made of high-end optical glass, double-sided multi-layer blue coating is conducive to waterproof and dustproof. 【Reduce Exposure】ND2-400 Reduces light intake from 1 to 9 f-stops, which is especially suitable for rivers, waterfalls and other waters, especially under strong light. 【Double Anti-Reflection Coating】Allows the use of slow shutter speeds on high-speed film or digital cameras to capture motion/blur in waterfalls, clouds or other fast-moving subjects. 【Ultra-Slim Frame】Adopt aviation grade aluminium alloy frame, only 7.3mm, ultra-slim edge design prevents wide angle vignetting. 【 Note】This ND filter is compatible with all 72mm lenses. Please check your camera's lens thread size before ordering. Your camera's lens thread size is marked somewhere on the lens barrel or printed under the lens cap. This number is always preceded by an "ø" (diameter) symbol.