Nikon D800 - Macro shot
Camera (Nikon D800 + Micro Nikkor 105mm f/2.8) on a tripod. Glass recipient filled with plain water with color calibration chart underneath. Two flashlights, one on each side (manual power). Drops released manually while triggering the camera. You need to get quite a few shots to pick the right one (exact synchronisation). RAW file processed in LR4.1 and Photoshop CS5 (essentially to remove the tiny dust particles floating on the water surface and the distracting bubbles formed in the water. Good luck!