The Urth 52 mm ND4 (2 stops) lens filter Plus+ is a professional circular neutral density filter for photographers and videographers who require precise light control. This filter provides a consistent light reduction of 2 stops, allowing for longer exposure times and wider apertures in bright light without overexposure. Made from German B270 SCHOTT optical glass, the filter maintains exceptional optical clarity and color fidelity with minimal color cast. The advanced 20-layer nano-coating ensures superior protection against water, oil, and scratches while facilitating easier cleaning. The ultra-slim edge design prevents vignetting when used with wide-angle lenses, and the robust magnalium construction offers long-term reliability. The double-threaded mount allows for filter stacking and compatibility with standard screw-on lens caps. This filter enables creative techniques such as long exposure for motion blur effects, shallow depth of field with large apertures in bright light, and cinematic video recording with controlled shutter speeds. The 52 mm thread size makes it compatible with various camera lenses of this diameter. The filter's consistent transmission curve ensures precise light reduction across the entire visible spectrum while maintaining natural color reproduction and image quality. Professional users appreciate the precise craftsmanship and optical performance that supports both photographic and cinematic applications with controlled light entry without compromising optical integrity.