The Singh-Ray Gold-N-Blue Polarizing Filter for Cokin P is an interesting filter that allows you to add either blue or gold tone to the image by merely rotating the filter ring. This permits you to add drama and emotion to your image. The filter works under most lighting conditions - even when the ambient light is less than perfect. Turn a simple shot into something that has more "snap".

The Gold-N-Blue Polarizer adds dramatic color to your outdoor scene, even when the lighting may be less than ideal
Increasingly popular with serious landscape and travel photographers
Works with ND Grads and other filters for a wide variety of effects
It's easy to use with any SLR - TTL meters have no trouble providing accurate exposures
Works especially well with large areas of blue sky and water