The 77mm QuartzLine Circular Polarizer Filter from PolarPro helps to reduce reflections and glare by filtering out light that has become polarized due to reflection from a nonmetallic surface. The light from the sun naturally becomes 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 nonmetallic surfaces and an increase in the saturation of skies and foliage.

FEATURES

• Helps to reduce reflections and glare by filtering out light that has become polarized due to reflection from a non-metallic surface.
• Polarizing filters arrange, and filter, directionally polarized light perpendicularly to the reflected light, allowing for the absorption of much of the light.
• Clears up haze in distant landscapes and provides more saturated, vivid colors.
• Strongest effect when used at a 90° angle from the sun.
• Circular polarizers are ideal for use with digital cameras and autofocus lenses where a linear polarizer will often disrupt auto exposure and focus features.
• The 2.5x filter factor reduces exposure by 1.3 stops.
• Constructed from quartz glass for enhanced durability.
• Multicoated to prevent internal ghosting and reflections while promoting clarity as well as color fidelity.
• Brass filter ring helps to prevent jamming and provides additional strength.
• Filter ring can be rotated to adjust the intensity of the polarization effect.
• 77mm front filter threads allow for use with other filters.
• Side knurlings provide a textured grip when mounting or removing from a lens.
• Plastic filter case for storage and transport.
• Microfiber cloth for cleaning and maintenance.

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