The Nikon Z 14-24mm f/2.8S uses a 112mm standard screw-in filter with the included HB-97 lens hood that comes with the lens. NiSi's ultra-thin UV filter adopts a double-sided, multi-coating lens technology that employs high-quality ultraviolet absorption optical glass. It assures high transmittance and a highly smooth surface that avoids unnecessary reflection. Brass Frame The frame is constructed from Brass using highly accurate brass milling. Anti-Reflective Nano Coating The NiSi 112mm Circular NC UV Filter has an exclusive "U" type anti-reflective Nano coating and a hardened waterproof coating. The filter cut the UV light below 365nm and features 9 layers of Nano coating on each side of the filter. The transmittance of the UV filter is extremely high at 99.3percent. Protective Filter The UV filter is also useful as a general protective filter to leave on lenses at all times. Filters help to reduce dust and moisture from reaching your lens element and provide additional protection in case of drops or situations where scratching could occur.