Now that smartphones have put a high-def camera in everyone's pocket, one startup called CENTR Cameras, is looking at new ways of capturing the world around us.

Of course, there's GoPro, which is making it so that anyone can record amazing footage during sports or in harsh weather conditions. GoPro filed for a confidential IPO back in February.

And there's also Lytro, which has built cameras that capture direction, color and brightness of light, letting users pull off neat visual tricks like changing focus after a photo has been taken.

Just last week, Lytro announced the Illum, a $1,500 camera that hopes to bring their fancy technology to the lucrative high end of the market.