The last few days I lit the chiminea, it was so windy the flames went into a really tight spiral, like a vortex. I was trying to get that today, but the problem was I needed a really fast shutter speed. I didnt want to push ISO too high, for fear of grainy shots (apparently over ISO 800 on this baby and it starts to get bad); I also wanted to keep a reasonable f-stop, but ended up with low light, and the shot was recorded at 1/100 at f2.5, hence the flame is a little out of focus (low depth of field and high speed of flame). In the end none of the vortex shots looked like anything.
There is a really cool little option to set off up to 16 frames at 10 fps, and the camera will store these to memory card, for you to later select the best image. This is what I done with this shot.