The lee bug 09 neutral density hard grad is designed to give your action films a professional look with detailed skies and saturated colour this 3 stop grad will add detail to the sky and prevent a whiteout or burnout the filter can be left in place for all outdoor filming and the effects are plain to see when using the graduated filter the best results will be achieved with the spot metering option turned on the filter is to be used in conjunction with the lee bug filter holder not i