Silicon Valley startup Lytro has come up with a camera so different from anything else on the market that it isn’t really in the same category. It starts at a non-measly $399, yet isn’t good for shooting typical snapshots and doesn’t do video at all. But it’s the first consumer camera based on light-field technology, a breakthrough which captures all the light rays in a scene. That lets you share unique photos other folks can play with by changing the focus, shifting the perspective and applying filters which affect only certain items. This pocketable, kaleidoscope-like gadget feels like a preview of the future of photography.