The B+W 77mm 3.0 ND 110 Filter is a solid neutral density filter providing a 10 stop exposure. This 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. Neutral density filters do not affect the coloration of the image* and are ideal for pairing with other filters. B+W filters are constructed from high quality Schott glass for increased optical clarity and color fidelity. They feature a brass filter ring for durability as well as jamming prevention. *Note: Due to the amount of additional exposure required to compensate for the density of this filter, some color shifts may occur. Individual testing is recommended before use.