Cameras offer advantages even to smartphone owners

If you have a smartphone, you likely take lots of pictures with it. So why would you ever need a stand-alone digital camera? That's a question many consumers are asking. Digital camera sales are falling, while smartphone ...

Gadget Watch: Samsung lens flips from 2-D to 3-D

Cameras that can record in 3-D are usually pretty complicated, sporting two lenses instead of one, to mimic human binocular vision. Samsung says it has a more elegant solution: a single lens that can go from 2-D to 3-D mode ...

Gadget Watch: Control a PC with body motions

(AP) -- Don't trash your keyboard and mouse just yet. But three companies at the International Consumer Electronics Show demonstrated depth-sensing cameras that let you to control your computer by moving your hands or body.