Exposure Calculator (ND Filters):Amazon.com:Appstore for Android
ND-Filter Expert App - The Best ND-Calculator in the whole Universe
ND Filter Calculator App | Calculation of exposure
GitHub - awoisoak/Camera-Exposure-Calculator: Android app that helps you to calculate the desired exposure parameters from a based exposure (ND filter supported)
ND Filter Calculator APK for Android Download
Exposure Calculator for Android - Download | Cafe Bazaar
How to Calculate Exposure Time with a 10-Stop ND Filter | PetaPixel