He's been discussed here before. Search the archives for more info.
He shoots through heavy foreground, glass, crystals, plastic whatever. I'm told he also carries a selection of pieces of glass which are covered in varying degrees of dirt and scratches. Some of his shots look like he has used split diopters, or perhaps just lens elements.
It's easy enough to experiment yourself. Use a medium to long lens, say 50 - 85mm (Assuming s35) and play around with whatever translucent objects you can find. Wine glasses, magnifiers, test tubes, water bottles etc. A lot of the effect is down to how the light catches the foreground.