The ultraviolet filter absorbs the ultraviolet light rays that often make outdoor shots appear blurry and dull. It is a universal filter for nice weather, suitable for both color and black-and-white film. The UV filter can also serve as a "perpetual" lens protection when placed in front of the lens.
HMC (HOYA MULTI COATED)
The popular multi-coated filters are known for their extremely low reflections on their glass surfaces, which further suppresses stray light and "ghost images." An average transmission value of over 97% is achieved, resulting in high brilliance and balanced color neutrality. HMC filters from HOYA are recommended to fully exploit the high performance of modern multi-coated lenses.