Heavy Landing

There's only one way to get a great photo like this, visit a butterfly house at a zoo - in this case Melbourne Zoo.
You may want to swap lenses, because sometimes the butterflies are up real close, and other times you may want 300mm. This was taken with my wide angle zoom, at 85mm.
I had wanted to photograph the Tarantulas next door, but I think I'd need a tripod (as it's dark in there), and pick at time when there are no squealing kids.

Gotta be fast

Luckily this little beasty landed in the back yard, and was there for long enough for me to rush inside and grab the 40D, and test out the new 300mm.

My hindsight says I should always take more shots with various aperture settings, to cover the Bokeh you actually want. (IMHO this could be a little less bokeh)