The Urth 37mm UV Lens Filter (Plus+) is a high-quality screw filter specifically designed for use with lenses that have a diameter of 37 millimeters. This UV filter primarily serves to reduce ultraviolet radiation, which can lead to a bluish tint in photography. By using this filter, image quality is enhanced, especially in outdoor shots where UV rays are more intense. Additionally, the filter protects the lens surface from scratches, dust, and other environmental factors, thereby extending the lifespan of the lens. Attaching the filter is simple and straightforward, allowing it to be quickly screwed onto the lens. The Urth 37mm UV Lens Filter (Plus+) is a valuable addition for photographers who prioritize clear and color-accurate images while also wanting to protect their equipment.