The Urth 67mm ND4 (2 Stop) Lens Filter Plus+ is a professional circular neutral density filter designed for photography and videography applications requiring precise light control. This filter provides a consistent 2 f-stop light reduction, enabling photographers to use wider apertures in bright conditions or achieve longer exposure times without overexposure. Constructed from German B270 SCHOTT optical glass, the filter maintains optical clarity and color accuracy while reducing light transmission. The 20-layer nano-coating technology ensures minimal color cast and consistent light transmission across the spectrum, preserving natural color reproduction in final images. This multi-layer coating also provides enhanced protection against water, oil, and scratches while facilitating easier cleaning maintenance. The ultra-slim magnalium rim design prevents vignetting when used with wide-angle lenses, making it compatible with various lens configurations. The double-threaded construction allows for filter stacking with other 67mm filters or attachment of standard lens caps. This filter is particularly useful for achieving shallow depth of field effects in bright lighting conditions, creating motion blur in moving water or clouds, and controlling exposure in video recording scenarios. The fixed 2-stop reduction makes it suitable for situations requiring moderate light control without the complexity of variable ND filters. The durable construction and premium optical materials ensure long-term reliability and consistent performance across diverse shooting conditions. This filter is compatible with all 67mm threaded camera lenses and maintains full compatibility with autofocus and image stabilization systems. The professional-grade construction meets the demands of both still photography and cinematography applications where precise exposure control and optical quality are essential requirements.