Lytro changed photography. Now can it get anyone to care?

“Okay, can I take it out of the box now?” Lytro product director Colvin Pitts wants to show me the camera he’s been working on since 2007. He cautions that it’s just an early model, then gently lifts the stark, black device out of an unmarked box. It looks like a cross between a DSLR and a …