PolarPro QuartzLine Solid ND and Circular Polarizer Filter (77mm, 10-Stop)

This 10-stop, 77mm QuartzLine Solid ND and Circular Polarizer Filter from PolarPro is a filter that combines a solid neutral density effect with a circular polarizer effect. When in use, this filter's 1000x filter factor provides a 10-stop exposure reduction. Its 3.0 density creates a darkening of the entire image, allowing you to photograph with a wider aperture or slower shutter speed than normally required. By slowing your exposure time or increasing your aperture, you are able to control depth of field and convey movement more easily.