B+W 77mm MRC 1.8/64x (106) Neutral Density Filter

The BW Neutral Density6 F PRO Digital Filter reduces the light by six f stops. With this filter and without changing the f stop, a shutter speed of 160 s is changed to a full second, thus requiring the use of a tripod. Moving water is rendered as blurred and flowing in the photo, and people moving in streets are dissolved in unsharpness or become invisible. Because of its higher transmission in the red beyond 660 nm, this filter brings a slightly warm tone to colour photographs. If this effect is undesirable, a BW UV IR Blocking Filter 486 in front of the neutral density filter not behind it remedies that situation. The filter factor is 64x.