Buy Variable ND Filters – Control Exposure Without Swapping
When you film you want to lock shutter speed and keep the aperture open, and in changing light only a variable ND filter lets you do that. Turn the ring and the density moves steplessly, without lowering the camera or changing filters. NiSi uses precisely made polarising layers and defined hard stops, so the dreaded cross pattern stays away on wide angles and colours stay neutral across the whole range. Just as useful for stills shot wide open in bright sun. Buy variable ND filters now.