PolarPro BaseCamp VND 6-9 stops filter The VND 6-9 stops filter is designed to be used with the PolarPro BaseCamp filter holder. The filter holder has a slot to insert the filter. The filter has a small piece of extra aluminum at the top to hold the filter, so you avoid fingerprints on the filter. The complete securing of the filter is done by means of a rotary knob on the side of the filter holder. By adjusting the CPOL filter - which is included with the standard BaseCamp filter holder - you can change between 6 and 9 stops. Full control of light conditions A variable ND filter allows you to fully control your shutter speed in all lighting conditions. It also allows you to maintain a smooth frame rate in slow motion, for example when shooting video. The four possible settings correct the light by 6 to 9 stops. This is equivalent to a ND64 to ND512 grey filter. This VND filter is ideal for filming in bright conditions with large apertures. Information about the BaseCamp Matte Box The PolarPro BaseCamp Matte Box is a beautifully finished filter holder with flag that you can expand with all kinds of professional filters and accessories. There are regular Vario ND and ND filters available, or you can use the special Mist of Blue and GoldMorphic filters. Also different rails are available to mount the filter holder on. The PolarPro BaseCamp filter holder is specially designed for filming or photographing landscapes but can of course also be used in other situations.