The ACCU-ND technology in Hoya PROND filters delivers truly neutral color that will not add any noticeable tint to your images. The Hoya PROND series targets both the photographic and HDSLR market. The series provides 9 filters, from two stops to 10 stops light reduction. The metal coating ACCU-ND on PROND filters prevents color shift when changing from one denser filter to another, a common problem in other neutral density filter series. Now you can set your white balance once and have the same color balance, even if you need to change filters due to lighting changes, or for creative action.

PROND filters exclusively use Hoya optical glass that has a metal ACCU-ND coating to create the neutral density effect.