The Hoya ND 1000 reduces light by an equivalent of 6 2/3 stops. For video content creators, ND filters are very helpful in adjusting shutter speeds to match the frame rate while maintaining the depth of field of the footage. Hoya offers an exclusive and wide range of ND filters embedded in the PROND series for both photographers and filmmakers. PROND filters utilize Hoya's clear optical glass, which is mounted in a lightweight, precisely crafted aluminum frame. The frame features a front filter thread, allowing you to attach additional filters or a lens cap. Thanks to the leading ACCU-ND technology, the image is not negatively affected by color shifts that can occur due to inferior materials, poor quality control during manufacturing, or issues with the infrared spectrum of the light spectrum. With Hoya's exclusive ACCU-ND technology, a uniform reduction of light in the visible and IR spectrum is achieved.