Hoya PROND 77mm ND1000 (3.0) 10 Stop ACCU-ND Neutral Density Filter The ACCU-ND technology in the Hoya PROND filters yields a truly neutral color balance that will not add any noticeable color-cast to your images. The Hoya PROND series is aimed at the still photography and HDSLR video markets. The series provides 9 filters from two stop to 10 stop light reduction. The Metallic ACCU-ND coating on the PROND filters do not color 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 color balance even if you need to change filters due to changes in lighting, or for creative effect. The PROND filters use Hoyas 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. Event Cameras is a family-owned business located in the Beautiful Pacific Northwest of the U.S. We have been selling Photographic Filters since 2003. We try not to make things to complicated. We strive for same day shipping on all orders received prior to 2:00pm Pacific Time. Monday though Saturday. For International orders we use eBay’s Global Shipping program. The Global Ship program collects shipping costs as well as import fees at the time of purchase. Making for a seamless international shipment. Event Cameras has been a seller of Hoya, Kenko, and Cokin Filters since 2003. All product lines are acquired directly from the Authorized U.S. Importer for Hoya, Kenko, And Cokin products. Ensuring that you receive the Genuine product with a full manufacturer’s warranty. No Knock Offs or Imposters. Only the originals. We work closely with the Authorized U.S. operation to acquire products that are available domestically as well as internationally. Have a question? Send us an email and we will get back to you as soon as possible during normal hours of operation. (Monday through Saturday: 8:00am – 5:00pm Pacific Time.)