ND Filter Calculator
Find out which ND filter you need to achieve your desired long exposure.
Settings
Recommended ND Filter
ND32000 (4.5)
14 stops needed
Calculation Details
Base Exposure (no filter)1/512s
Target Exposure30s
Stops Required13.9
ND NumberND16384
ND Density4.2
Filter Stacking Options
ND1000 (10 stops) + ND16 (4 stops)
ND Filter Reference
FilterStopsDensity
ND210.3
ND420.6
ND830.9
ND6461.8
ND1000103.0