This Ice Z-Pro Series ND16 Neutral Density 1.2 Filter is an ND filter with a 16x filter factor that provides a 4-stop exposure reduction and is compatible with a Cokin Z-Pro Series Filter Holder. Its 1.2 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 can control depth of field and convey movement more easily. Neutral density filters do not affect the coloration of the image and are ideal for pairing with other filters.