Hoya 77mm Pro ND 100 Filter

Hoya 77mm Pro Neutral Density 100 Filter (Hoya 77PND100) We Think You Should Know • Up to 6 2/3 stop light reduction • Allows long shutter speed photos • Minimal colour cast Overview The Hoya PROND100 has a 6 2/3 stop light reduction equal to a ND optical density of 2. The ACCU-ND technology in the Hoya PROND filters yields a truly neutral colour balance that will not add any noticeable colour-cast to your images. The Hoya PROND series is aimed at the still photography and HDSLR video markets. The series provides 10 filters from one stop to 10 stop light reduction. The Metallic ACCU-ND coating on the PROND filters do not colour shift as you move from one density to the next, a common problem with other series of neutral density filters. Now you can set your white balance once and have the same colour balance even if you need to change filters due to changes in lighting, or for creative effect. The PROND filters use Hoya's exclusive clear optical glass that has a metallic ACCU-ND coating front and back to create the neutral density affect. Neutral density filters are designed to reduce the amount of light entering your camera lens and should not have any other effect on the image. Reducing the amount of light allows for the use of wider apertures or slower shutter speeds for creative and dramatic effect in bright lighting conditions. The HOYA PROND 100 is an dark neutral density filter with a filter factor 100. This filter factor converts to a  6 2/3 stops reduction on the amount of light entering the lens. With this filter motion is blurred or depending on the speed some moving subjects will disappear altogether. With the ND filter PROND 100m, a 2-second shutter speeds is possible.