In Pictures: 15 coolest gadgets at Macworld/iWorld Expo

The Macworld | iWorld Expo in San Francisco is an Apple lover's Disneyland. Ashton Kutcher kicked things off by plugging his movie "iJobs," but the main attraction is the showroom floor where vendors display their wares, everything from iPad and iPhone add-ons to iOS apps to Apple enterprise gear.

iPro Lens

The iPhone has emerged as a go-to camera even for professionals, including photo journalists at the New York Times. That's because it's always within hand's reach. But it would be nice to have the option to attach a wide angle, fisheye or telephoto lens. The iPro Lens does just that, enabling iPhone users to take professional-grade photos. Lens range from $79 to $105.

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