Using a neutral density filter can cause your camera to be unable to accurately process the shutter speed. This app solves the problem by calculating the shutter speed after you add the filter.
Select your shutter speed without the filter, then select the type of filter to be applied, and it will output the correct shutter speed!
Supports all filters 1 - 13 stops.
Tags: nd filter calcularor , nd filter calcuations , nd calculator , nd filter calculator