Exposure Calculator

Exposure Calculator is an app that I developed to calculate the shutter time required for taking long exposures when using an ND (Neutral Density) filter. To use: - first expose your scene as you would normally, without an ND filter mounted - note the shutter speed required for a properly exposed photo - set this shutter speed value into the first window of the app - now select the ND filter density that you would like to use - you will see that the third window will display the new shutter spe