We are in the Catskills of New York for our friends wedding. I took the opportunity to get down to the river behind where we’re staying to take some long exposure shots. I have my Tiffen Variable ND filter, my Lee Big Stopper and my Hoya NDX400 with me today. If I was shooting this scene with the current light the exposure would be 1/100 @f11 ISO 100. I was able to get down to a 10 second exposure with my Lee Bigstopper and that means super smooth water flow!