Decent basic calculator
Simple calculator that does what it says: calculates new exposure times. Unfortunately only goes to 10 stops, so if you have darker filters (like I do) it is of limited use.
ND Filter Calc User Reviews
Is ND Filter Calc Safe?
Not enough ratings yet to assess ND Filter Calc.
Is ND Filter Calc Legit?
ND Filter Calc appears legitimate, with a few gaps. AppsHunter Legitimacy Score for ND Filter Calc is 75/100.
Based on 75 of 100 points across 7 verification signals from App Store and developer data.
