When Erik Christiansen started smoking pot, he became fascinated by the look of different marijuana strains. But the photographs of marijuana he saw didn't capture the variety.
So he went to the hardware store and picked up two lights and a cardboard box. "I didn't even have a macro lens — I was shooting through a magnifying glass," he says.
The California-based photographer tinkered with his macro technique until he had created a consistent way to capture highly detailed images of marijuana.