B+W Master ND 1.8 Filter MRC Nano 72mm - Replaces XS-Pro 66-1066158

• Reducing the amount of light entering the camera
• Suitable for both analog and digital cameras
• Wipe effects, continuous light trails
• Selective sharpness by achieving larger apertures

This B+W ND filter, which reduces light entering the camera by six f-stops, already qualifies as an extreme filter. With this filter, and without changing the aperture (and DOF), an exposure time of 1/60 s becomes a full second. Running water is rendered hazy and soft. A tripod is necessary in any case.