Here's one from me. Yellow food colouring dropped into blue coloured water. This is a collision of two drops. As the first hits the blue water and bounces back up the second drop collides with it. I did this all by hand (no sound/ IR trigger) so I got about 10 keepers out of about 360 shots this session. The moment is captured by triggering the flash only while the shutter is open in a darkened room. Takes a LOT of patience but it's pretty cool when you get a good one.


40D, 70-200f/4L IS @ f/14, ISO 200, 32mm Kenko extensiontube attached.Shutter set to bulb, 580 exII flash @ 1/128 power.


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Cheers, Ben.