Bw 810 nd30 mrc nano 100x100mm filter
The bw 100 x 100 mm xs pro mrc nano 806 solid neutral density 30 filter is an nd filter with a 1000x filter factor that provides a 10 stop exposure reduction it is compatible with a bw 100 mm filter holder and its 30 density creates a darkening of the entire image allowing you to photograph with a wider aperture or slower shutter speed than normally required