The photo below is an image of a cheap plastic water bottle, you can see the white-colored cap on top. However, I am not sure how the lighting was done. For sure no expensive strobing has been used. I wonder if the coloring has been done only in post-processing. Please note that the droplets appear in at least three different colors. Any thoughts?

enter image description here

2 Answers 2


For colored water drops, you put colored filters on the flash. Technically, you cannot change the color of the water, you change the color of whatever the water is reflecting. On that one, the white cap is blue too.

You can put different filters on a couple flashes to mix colors. For example, blue and red was used on two flashes for this one: http://www.scantips.com/drops/shako/

  • This is something to experiment with at leisure. You can sometimes put two filters on the same flash (or constant floodlight) with each covering half the area. How much mixing you'll get will depend on the shape of the reflector and lens of the flash.
    – Chris H
    Jul 13, 2016 at 13:35

The color of the droplets depends on color of incoming light it is reflecting or refracting. I suppose you could get similar effect if you put the bottle close to a computer monitor with some colorful image on it...

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