Skylight
and UV filters should be constantly fitted to a lens to give improved
clarity and color balance as well as offering protection to your lens. Standard 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. There
are a few exceptions in the special effects range which, due to the
special materials used in construction, do not have coatings applied.