The Olympus 95mm PRF-ZD95 PRO ZERO Protection Filter is a clear filter that provides general protection for your lens without affecting the overall image quality. A thin Zuiko Extra-Low Reflection Optical (ZERO) coating reduces reflection to enable clear and high-contrast image. Additionally, the coating benefits from the vacuum deposition method to prevent scratches and ensure consistent low-reflective performance. To ease cleaning, a fluoring coating, which helps to resist fingerprints and other surface markings, has also been applied to the filter surface. This optical glass filter is set within a one-piece satin black aluminium ring to reduce the likelihood of vignetting when used on a wide-angle lens while a black coating on the glass edge helps to reduce reflections. Threads on the front of the ring allows accepting additional filters or lens caps.