Light rays which are reflected by any surface become polarized and
PROMASTER Polarizing filters are used to select which light rays enter
your camera lens. They allow you to remove unwanted reflections from
non-metallic surfaces such as water, glass etc. They also enable colors to
become more saturated and appear clearer, with better contrast. This
effect is often used to increase the contrast and saturation in blue skies
and white clouds.
PROMASTER polarizers do not affect the overall color
balance of a shot.