I understand that with this ND filter, we can freeze the water.
Example with 2 stops ND filter:
if we shoot at AV mode, F8, ISO100, we will get 1/100s (without 2 stops ND filter)
at same setting, we will get like 1/25s (with 2 stops ND filter)
why do we still need to pay for ND filter as we can use TV mode and set at 1/25s.
Anyone can answer my doubts. Thanks.