sunpak cf-7079 55mm tw ultra-violet circular polarizer twin filter pack
sunpak s twin pack combines the two most popular filters ultra violet amp circular polarizer . the ultra violet uv filter absorbs ultraviolet rays which often makes outdoor photographs hazy and indistinct . a muliti-purpose fine-weather filter for color as well as black and white films it eliminates haze and serves as a lens protector . light rays which are reflected by any surface become polarised . the circular polariser filter is used to select which light rays enter your camara lens . they allow you to remove unwanted reflections from non-metallic surfaces such as water glass etc. they also saturate colors and increase contrast creating dramatic sky cloud contrast . increases contrast equally well with black amp white film .