The 49mm Nano-X ND32 HD Multi-Coated Schott B270 Circular Polarizer Filter from K& F Concept combines a solid neutral density filter with a circular polarizing filter into one, creating an essential tool for landscape photographers. This filter s 1.5x filter factor provides a 5-stop exposure reduction of the entire image, allowing for a wider aperture or slower shutter speed than usually required. Slowing the exposure time adds image blur to convey movement or smooth images, while the wider aperture capability allows for finer depth of field control. The filter simultaneously reduces reflections and glare by filtering out light that has become polarized due to reflection from a non-metallic surface. Sunlight is naturally partially polarized due to reflecting off electrons in air molecules, causing the light to scatter into what appears as haze. A polarizing filter arranges and filters this directionally polarized light perpendicularly to the reflected light, allowing for the absorption of much of this light. This results in a noticeable reduction of glare and reflections from non-metallic surfaces and an increase in the saturation of skies and foliage.
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