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Lee Filters SW150 150x150mm Circular Polarizer Filter
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About Lee Filters SW150 150x150mm Circular Polarizer Filter
There are two types of Polarizer, circular and linear. These names bear no relation to the physical shape of the filter itself but refer instead to the way the light waves are transmitted through the filter to achieve the polarizing effect. When light from the sun bounces off a flat non metallic surface, such as glass or water, it becomes polarized with all of the reflected light waves vibrating in the same plane. This reflected glare can be removed by the polarizing filter. The SW150 System features its own circular polarizing filter. If used alone, the polarizer can be placed into the filter holder and the holder rotated until the desired effect is achieved. If used with a grad filter, the grad should be positioned first, then the polarizer added - you will have no rotation possible without turning the grad, but will have a choice of two axis of polarization, achievable by turning the filter through 90 degrees. SW150 Polarizer: Circular Effect Ideal polarizer for autofocus SLR cameras. Slots into the Filter Holder which is then rotated.
