Lee 100mm ProGlass IRND 10 Stops

The LEE Filters LE PG10 ProGlass IRND 100mm 10 Stops ND Filter has a filter factor of 16x and offers a 4-stop exposure reduction. With a density of 1.2, you are assured of darkening over the entire image, allowing you to shoot with a larger aperture or slower shutter speed than you are used to.