Neutral density filters They enable time exposure by reducing the amount of light entering the lens. Filter ND 16x E39 Discover Filter ND 16x E46 Discover Filter ND 16x E55 Discover Filter ND 16x E60 Discover Filter ND 16x E67 Discover Filter ND 16x E72 Discover Filter ND 16x E82 Discover Filter ND 16x E95 Discover