Become a better photographer with the HOYA ND 8X PROND 58mm ND filter. The filter's main advantage is that it partially blocks light coming into the lens, allowing you to use a longer shutter speed. It also creates motion blur on moving objects. Another great feature of all ND filters is that you can use a wider aperture for a striking depth of field effect. The HOYA ND 8X PROND 58mm ND Filter features a 58 mm filter diameter, making it compatible with a wide range of different lenses. The ND factor of 8 indicates a transmittance of 13%, so you can set up a 8x longer exposure.