The Hoya ND 2 reduces light by an equivalent of one f-stop. For photographers, ND filters mean precise control over the amount of light that reaches the lens, allowing for greater creative control over exposure. Hoya offers both photographers and filmmakers an exclusive and extensive range of ND filters embedded in the PROND series. PROND filters use Hoya's clear optical glass, which is mounted in a lightweight, precisely crafted aluminum frame. Thanks to the leading ACCU-ND technology, the image does not suffer from negative effects due to color shifts that can occur from 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 do not have to worry about color shifts when using Hoya ND filters under various shooting conditions.