【Usage】The JJC UV Filter is a general use, clear filter that helps to absorb ultraviolet light and reduce the bluish cast of daylight. It’s also useful as a protective filter to leave on lenses all the time. The UV Filter helps to reduce dust and moisture from reaching your lens element and provide additional protection in case of drops or situations where scratching could occur. | 【99.5% Light Transmission】The light transmission is up to 99.5%, which provides you with high color fidelity. | 【19 Multi-coated Layer】The filter is designed with 19 layers of coating on each side to reduce internal ghosting and reflections. | 【Five Anti-Coating】Five anti-Coating makes the filter anti-scratch, anti-fingerprints, anti-static, oil and water-resistant. The filter is constructed from high quality German glass for increased optical clarity and color fidelity. Slim design with 0.09” (2.4mm) aluminum frame helps minimize the potential for vignetting. | 【How to choose the right thread?】Compatible across all lenses with 52mm lens thread. Please verify your camera's lens thread size based on “Ø” marking on lens barrel or underneath lens cap before purchasing. For this 52mm UV filter, the front of the frame is designed with thread for attaching lens cap or other accessories.