The Urth 105mm UV Lens Filter (Plus+) is a high-quality screw filter specifically designed for use with lenses that have a diameter of 105 millimeters. This UV filter primarily serves to block unwanted UV rays that can affect image quality. By reducing UV light, the filter helps improve the clarity and sharpness of captured images, especially in outdoor or high-altitude settings. Additionally, the filter provides extra protection for the lens surface, minimizing scratches and dust. The Urth UV Lens Filter is easy to handle and can be effortlessly screwed onto the lens, making it a practical accessory for photographers who value image quality and lens protection. With its robust construction and clear optics, this filter is a sensible addition to any photography gear.