Looking something straight out of the optometrist's office, those photo obsessed folks over at Photojojo have come up with the hardware equivalent of Instagram effects (sans stylized film distressing). The iPhone Lens Dial is an aircraft-grade aluminum jacket that slips onto the iPhone with a large lens dial, offering users three optical-quality coated glass lenses for Wide Angle, Fisheye, and Telephoto effects, all at the turn of the dial. Check out samples of what it can do below...

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