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 the photographic and HDSLR market.

The ACCU-ND metal coating on PROND filters prevents color shift when switching from a denser filter to another, a common issue with other series of neutral density filters. Now you can set the white balance once and maintain 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 with ACCU-ND metal coating to create the neutral density effect.

Neutral filters are designed to reduce the amount of light entering the camera lens and should not have any other effect on the image. Reducing the amount of light allows for the use of larger apertures or slower shutter speeds for creative and dramatic effects in bright lighting conditions.