Experience the ultimate in lens protection without compromising on image quality with the NiSi ATHENA Clear Rear PL Filter, expertly crafted for ATHENA PL Mount Lenses. This high-quality clear filter serves as an essential tool for filmmakers who require an unaltered view while protecting their valuable lens elements from dust, scratches, and environmental hazards. While the ATHENA Clear Filter is included as standard with every purchase of a NiSi ATHENA PL lens, this additional replacement filter is readily available for purchase to ensure your lens always has the protection it needs.