Tiffen 67mm Wide Angle Circular Polarising Filter (Low Profile Design) 

Tiffen 67mm Circular Polarising Filters - Reflected light rays become polarised. Polarising filters are used to select which light rays enter your lens. They can eliminate unwanted reflections from non-metallic surfaces such as water or glass and also saturate colours by providing better contrast. The effect can be seen through the viewfinder and modified by rotating the filter. The filter factor varies according to the rotation of the filter and its orientation relative to the sun.
If you're walking around on a beautiful day - in the mountains or at the beach - and want to capture a superb photo of a sky filled with clouds or make the water more saturated, then a polariser is the solution. This filter is the best way to make clouds stand out, increase or decrease the saturation of the ocean or increase or decrease reflection on water. You can also use this filter when photographing through glass or windows as it will, once again, allow you to increase or decrease reflections.
If you're photographing in black and white and want to simulate a threatening storm, try adding a red #25 filter. The landscape will take on the appearance of an imminent and threatening storm.
Along with a UV or Skylight filter, a polarising filter should be part of every photographer's equipment. It can transform an ordinary image into a stunning creative photo by increasing colour saturation.
This filter uses a wide-angle mount (low profile). To help eliminate vignetting (corner darkening), it has no front thread.
Note: Circular polarisers are specifically designed for use with autofocus SLR cameras (they will also work without problems on manual systems)
- This filter eliminates ultraviolet rays from outdoor shots whilst polarising light to suppress reflections and increase colour saturation, without affecting the overall colour balance
- Can significantly improve a blue sky and make clouds more prominent
- Optimal use at right angles to the sun
- Effective with cameras that use beam splitters in the TTL light meter path and with AF cameras