Review (Summary): "The Olloclip is a 3 in 1 lens that slips onto the iPhone 5/4/4s. The Olloclip features a fish-eye lens, macro lens, and wide-angle lens - all integrated into an ultra-compact 1.4" x 1.2" module.
... At $69.95, the Olloclip offers added versatility for your iPhoneography. While software allows you to add gimmicky filters to your photos, only add-on lenses can give the camera true macro capabilities or a wider field-of-view. The Olloclip is very compact and offers very good image quality from the macro and wide-angle lenses ..."