Completely off topic, but I thought I'd share my latest little project to show what can be done with cheap equipment, a bit of patience and loads of imagination. All taken with my GX10 and the Raynox DCR250 macro adaptor.
Enjoy the show (links under each pic to bigger versions):
1. Perfectly stable
2. Starting to get choppy, even turning the focussing ring causes enough air turbulence to make the surface change:
3. The water + glycerine etc is now starting to settle out, big globs of it start appearing, notice how chaotic the forms look:
4. The water and glycerine start to form smaller drops and congregate at the bottom of the bubble:
5. The water and glycerine has now settled at the base of the bubble, the black space is the transparent bubble / black background:
I know there are some issues with the DOF, you have to take these shots at and angle of around 30 - 45 degrees to get the light refracted correctly, combine that with the speed at which the surface of a bubble changes etc it's a bugger to get these shots. You need to keep the shutter speed > 1/60th so you cannot use a narrower aperture as the available light isn't great and I want to keep the ISO low.