The Urth 43 mm ND4 (2 stops) Lens Filter Plus+ is a professional circular neutral density filter designed for photographers and videographers. This filter provides a constant light reduction of 2 stops for precise exposure control under various lighting conditions. Made from German B270 SCHOTT optical glass, it ensures accurate color reproduction and excellent light transmission. The filter features 20 nanocoating layers for enhanced protection against water, oil, and scratches while maintaining optical clarity. With an ultra-thin edge design of 43 mm in diameter, this filter minimizes vignetting when used with compatible lenses. The robust magnalium construction offers long-term reliability, and the double-threaded design allows for filter stacking or the attachment of screw-on lens caps. This ND4 filter is particularly useful for achieving wider apertures in bright conditions, creating depth-of-field effects, and enabling longer exposure times without overexposure. The fixed 2-stop reduction makes it suitable for various photographic scenarios, including landscape photography, portrait work, and cinematic videography. The multi-layer coating ensures consistent light transmission across the spectrum while also facilitating cleaning and maintenance. This filter preserves optical quality while reducing light intake, making it an essential tool for creative exposure control and specialized photographic techniques.