The protector filter is designed to protect the lens from dust or dirt. The Super EBC (Electron Beam Coating) of these would control harmful borrowed light effectively. Super EBC is effectively limiting harmful reflections by achieving a surface reflectivity of 0.3% or less.
Protector filter for Fujifilm FinePix S1 & XF 10-24mm Lens
Durable Fujinon Super EBC Coating
High quality protector filter for any device with 72mm filter threads