Tamron 72mm Circular Polarized Camera Lens Filter

Light rays which are reflected become polarized. Polarizing filters are used to select which light rays enter your camera lens. They can remove unwanted reflections from non-metallic surfaces such as water or glass and also saturate colors providing better contrast. The effect can be seen through the viewfinder and changed by rotating the filter. The filter factor varies according to how the filter is rotated and its orientation to the sun. If you're out walking on a lovely day — in the mountains or at the beach — and you want to get a fabulous shot of a cloud-filled sky or make the water seem more saturated, then a polarizer is the way to go.

• This filter eliminates ultraviolet rays from outdoor shots as well as polarizing the light to remove reflections, and increase colour saturation, without affecting the overall colour balance

• Can dramatically enhance a blue sky and make the clouds more prominent

• Used best at right angle to the sun

• Effective with cameras that use beam splitters in the path of the TTL light meter and with AF cameras