B + W 52mm 110 3.0 (1000x) ND SC Filter #65-1066170
B W 52mm #110 Neutral Density Glass Filter - 3.0 - 1000X with Single Coating. This type of filter prevents strong flare and brings out interesting details. Filter factor is 1000. 1.8 (64x) Reduces the light six f-stops.!