The Hoya ND 2 reduces light by the equivalent of one f-stop. For photographers, ND filters provide precise control over the amount of light that enters the lens, allowing for greater creative control over exposure. 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. Thanks to the leading ACCU-ND technology, images are 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.