Light rays which are reflected by any surface become polarised and polarising filters are used to select which light rays enter your camara lens. PL (Linear Polarising) and PL-CIR (Circular Polarising) filters have the same effect, but it is important that you choose the correct version for your camera. 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. HOYA's polarising filters do not affect the overall color balance of a shot.
UV POL Filter A revolutionary 'hybrid' design which combines the effect of two different filters in one ring. This filter eliminates ultraviolet rays to remove haze from outdoor shots as well as polarising the light to remove reflections, and increase color saturation, without affecting the overall color balance. Fitted in a slim rotating 5mm ring, it will be invaluable to landscape and other photographers who need avoid vignetting with wide angle lenses.
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