If you’re the type who’s always taking photos with your camera phone, then you might be interested in the iPhone Lens Dial. The case has 3 lenses to rotate into position, allowing for quick lens changes. The three lenses are a Wide Angle, a Telephoto and a Fisheye. It’s quite pricey at $249, but if that’s what you want to spend your hard earned money on, then good on ya.
The iPhone Lens Dial boasts three optical-quality coated glass lenses: Wide Angle, Fisheye, and Telephoto. All wrapped up in a slim aircraft-grade aluminum jacket equipped with two tripod mounts (for portrait or landscape shots).
To switch between lenses just rotate the disc! Best part: the lenses never leave your phone, so they’re always at the ready.
Use the 0.7x Wide Angle for sweeping landscapes or get fun warped images with the 0.33x Fisheye. Switch to the 1.5x Telephoto and get nearly two times closer to your subject. Wowza. – Photojojo
Link: The iPhone Lens Dial