K&F CONCEPT 55mm Variable ND Filter ND8-2000 3-11 Stops HD Optical Glass Multi-coated Slim Adjustable Fader ND8-ND2000 Neutral Density Filter, for Beach Rivers Waterfall Outdoor Nano-D Series FN503

Variable ND Filter: Can be adjusted from ND8 to ND2000 (3-11 f-stop). Enables increased exposure times and/or apertures while using the neutral density filter to prevent overexposure. Multi Coating: Made of premium Optics Glass. Double multi-coating, water repellent. Reduces the intake of light without affecting the overall color balance. Ultra Slim: Ultra slim filter frame design preventing wide angle vignetting. Extra tough aviation aluminum frame ensuring durability and jamming prevention. Easy Installation: This variable ND filter frame is designed with CNC trapezoidal pattern, ensuring more friction when screwing. Very easy to install. Note: Compatible with all 55mm lenses. Please verify your camera's lens thread size(usually marked somewhere on the lens barrel or printed underneath the lens cap) before ordering.This number is always preceded by a "Ø" (diameter) symbol. For example: Ø37 = 37mm lens thread size.