As part of my ongoing attempts at combining fast set concrete with stainless steel, this is the latest experiment. I wanted to try the idea of splitting a concrete sphere to reveal some interior structure, almost like those geodes that reveal beautiful crystals inside when they are opened. This piece is 330mm in overall height. The stainless steel filaments are 1mm in diameter and are offcuts from other projects. They give amazing rigidity; there is zero movement between the two hemispheres, that are hollow, not solid concrete. The base is stained and varnished concrete. Part of the fun was facing the challenge of taking these photos. I had to resort to focus stacking, because the 135mm f2 Nikon lens had a limited depth of field, even at the f5.6 aperture I was using.