Collisions

This is a photograph of two water drops colliding with each other. I bought a device from Cognisys that releases two drops of water with a very specific time interval between them. By experimenting with the timing of that event – in thousands of a second – you can capture the collision. The first drop hits a small pool of water and bounces up hitting the second drop on its way down. The illumination comes from two portable flash units that trigger when an electronic beam is broken. The colors come from small gels placed over the flash heads. The shutter speed was long to allow this whole process to take place. It was the flash duration – the actual length of time the light in the flash was on – that froze the action. I was shooting in a dark room, and the settings were 2.5 seconds, f/32, and 400 ISO. I used a 135mm focal length.

1 Comments

Oct 16, 2026, 10:26:37 PM

Linda Purdom - All your photos are amazing, but this one realky takes the cake! WOW

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