Become a better photographer with the HOYA ND 8X PROND 82mm ND filter. The main reason why you should want one is that it reduces the amount of light that ends up on the camera’s sensor, allowing you to use a longer shutter speed. It also captures objects in motion and adds a blurred effect. Another popular feature of ND filters is that you can use a wider aperture for a more intense depth of field effect. The HOYA ND 8X PROND 82mm ND Filter features a 82 mm filter diameter, so it's compatible with many different lenses. The ND factor of 8 indicates a transmittance of 13%, so you can set up a 8x longer exposure.