Polarisers provide colour and contrast enhancement. Reflected light often shows up as whitish glare that washes out colour in an image. A Polariser corrects this problem producing deep, dramatically blue skies. It also removes glare from non-metallic surfaces, such as windows and water. Colour saturation in general, especially outdoors, can be improved significantly.
Essential general-use outdoor colour filter
Produces deeper skies and minimizes reflections in black and white and colour photography
Can be rotated to adjust intensity and achieve desired effect