Benro Master ND16/ND64/ND256/ND1000 150 150mm Neutral Density Square Filter. Model:ND16/ND64/ND256/ND1000. Specifications Type:BENRO Master ND Filter. • ULCA Multi-Coating - Decreases flare and significantly reduces chromatic aberration (average transmission >99.0% at 420-680nm).