1. Protect your expensive lens from dust and scratch while not lowing your photo quality. 2. Reduce haze and improve contrast to your video and digital images by minimizing the amount of ultraviolet (UV) light. 3. Especially useful in areas of high altitude, snow, or beach, eliminating the undesirable blue cast. High level of transmittance. 4. Portable and durable, easy to install. 5. The lens adopts imported optical glass, high-definition grinding treatment, and adopts double-sided multi-layer nano-coating process to give the lens waterproof, oil-proof, anti-fouling and scratch-proof performance. 6. Material: Aluminum alloy frame + optical glass lens
