These filters offer both amateur and professional photographers HOYA's famous quality at reasonable prices. They have coatings applied to both surfaces to suppress reflection and increase light transmission.The Hoya HMC UV Filter is a multi-purpose, fine-weather filter that is designed to optimize the photography experience of digital SLR users. UV filters absorb ultraviolet rays that often make outdoor photographs hazy and indistinct, and can be constantly fitted to a lens to provide improved clarity and colour balance, as well as to provide protection to your lens. Hoya Digital HMC filters are optimized for use with digital SLR cameras, but they are also perfect for traditional 35mm SLR applications, including black and white photographyHOYA HMC filters are renowned for their ability to minimise reflection at the filter surfaces which reduces flare and ghosting. The result is an average light transmission of over 97%, giving sharp contrast and well balanced colour. HOYA HMC filters are recommended for enhancing the performance of todays multicoated lenses.