The Hoya ND 8 reduces light by an equivalent of 3 stops. Neutral density filters (ND filters) are among the most sought-after and important types of photographic filters for several reasons. For photographers, ND filters provide precise control over the amount of light entering the lens, allowing for greater creative control over exposure. For video content creators, ND filters are very helpful in setting shutter speeds to match frame rates while maintaining the depth of field of the footage. Hoya offers a unique and extensive range of ND filters embedded in the PROND series for both photographers and filmmakers. PROND filters utilize Hoya's clear optical glass, 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 range of the light spectrum. With Hoya's exclusive ACCU-ND technology, a uniform reduction of light in the visible and IR spectrum is achieved. As a result, photographers need not worry about color shifts when using Hoya ND filters under various shooting conditions.