1. Made of metal and high-transparency glass. 2. The CPL lens eliminates unwanted reflections from non-metallic surfaces such as water or glass, and glare from the sun. Increases color saturation and creates deep, rich scenic images. Helps to reduce the amount of light entering the lens. 3. The UV lens reduces haze and improves contrast in your video and digital images by minimizing the amount of ultraviolet (UV) light. Especially useful in areas of high altitude, snow, or beach, it eliminates the undesirable bluish cast. 4. 16X macro lens, increases the magnification of the subject, more suitable for shooting plants and flowers or small insects. 5. Color filters: - Red filter: The absorption of blue light can produce a romantic sky effect or daylight moon-like effect, and has the function of absorbing ultraviolet rays. Photography generally needs to increase the exposure level by three, the specific needs for photography requirements and - Yellow filter: Night swimming diving video, yellow filter is necessary, adjust the excellent spotlight area color effect - Purple filter: Use in about 5-25 meters of water can effectively reduce the color deviation of green plants 6. Protect your expensive lens from dust and scratches without lowering your photo quality. 7. Portable and durable, easy to install.