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4) Burning match showing heat-generated air vortices


Definitely some studio talent here. One of the few I mentioned that involved some technical talent. Once you know how to work the technique in the studio you'll still need to take a lot of shots to get "the one" - and of course picking "the one" is a big part of the talent here.

But even this could be a single frame taken from a sequence shot with a high speed camera -- some of those cameras can do in excess of 30,000 frames/second -- in which case, there's nothing really technically talented about this photo, either, beyond putting the match in front of a pretty, coloured background.