1. High quality optical glass for maximum clarity and vivid picture2. The UV lens filter serve as permanent lens protection against dust, dirt and stain3. These digital cameras filters are suitable for all DSLR lenses, digital still, video & DVD camcorders4. Camera lens filter absorbs ultra violet rays without an increase in exposure to provide a clearer picture as well as protection for your valuable lens5. Material: Aluminum alloy & optical glass6. Camera UV lens filter is used to alter the properties of light as it enters a camera's lens