The Urth 46mm R72 Infrared Lens Filter is designed for infrared photography applications and operates at wavelengths above 700 nanometers to capture infrared light while blocking visible light. This circular filter features a high-quality construction made from German SCHOTT glass with a 20-layer nano-coating that provides professional clarity and true color balance for infrared imaging. The ultra-slim edge design minimizes vignetting, making it suitable for wide-angle lenses, while the double-threaded construction allows for filter stacking and compatibility with standard screw-on lens caps. The nano-coating offers protection against water, oil, and scratches, making cleaning easier. This filter is specifically designed for cameras without built-in infrared cut filters, enabling photographers to capture unique infrared scenes with enhanced light transmission and consistent transmission properties. Its durable construction ensures reliable performance for outdoor and nature photography applications, where infrared imaging can transform ordinary landscapes into distinctive photographic compositions. With its precise 46mm thread size and professional optical quality, this filter provides photographers with a tool to explore creative infrared photography techniques while maintaining optical integrity and mechanical durability.