This time I was going to take the picture of the ice stalactites formed outside the kitchen window.
It was. ( still is) very cold outside -9°C. however to avoid some dirt on the window to appear on the picture, I opened the window. After the third picture (I was experimenting with the Aperture). I noticed that the heat from the house, while going out the window was enough to make them melt and start generating drops.
Therefore I change the settings to make some tests on (Tv Time Value) to try to get a clear drop on free fall.
I must admit it took me some time to be able to synchronize the shoot with the falling drop :-P