Ultra-thin milled brass frame to minimize vignetting on wide-angle lenses Neutral Density 3.0 for 10-stop light reduction and enhanced exposure control Transmits only 0.1% of light for precise aperture and shutter speed manipulation IR blocking Nano Coating for true-to-life colors without infrared interference Professional-grade tool for achieving blurred backgrounds and low-light photography effects Multi-coated coating to reduce reflections and glare, improving image quality