Premium Pro 77mm HD MC UV Filter — Fits Canon EF 300mm f/4.0L is USM — 77mm Ultraviolet (UV) Filter

Made for the Canon EF 300mm f/4.0L is USM, this Premium Pro 77mm HD MC UV filter eliminates UltraViolet Light (UV). It uses resilient optical glass that is multicoated and delivers 97% Passthrough for minimal light loss. The filter is mounted in a low-profile, pressed aluminum frame for a slim, durable fit.