It is noteworthy that the majority of pits in all studied NaCl solutions appear within the same frame or, at most, in the subsequent frame. While this suggests that a higher acquisition rate could provide better temporal resolution of pit appearance, the size of initially detected pits rarely exceeds 2-3 pixels or 0.25-1 µm 2 (Figure ). This highlights that, for the given spatial resolution, the chosen 5 Hz acquisition rate is adequately suited to capture initial pit location, which is of primary importance in this work. However, future studies prioritizing a finer resolution of the dynamics of pit appearance may benefit from an improved acquisition rate.