We have seen several different add-on lenses designed to enhance the iPhone camera, but these versions ditch the case in favor of magnetic mounts. There are also three different lenses to choose from.
https://gizmodo.com/brandos-telescope-case-now-for-iphone-3g-owning-voyeurs-5038164
Because the iPhone has a plastic case, a self-adhesive ring with a magnet must first be affixed to the area around the camera lens. After that, it’s a simple matter of bringing the add-on lens in contact with the magnet. In fact, the wide angle, telephoto and fish-eye lenses can be used on just about any device with appropriately-sized webcams and cameras. How well the lenses work is unknown, but at least they won’t break the bank at $17 apiece. [USB Fever via Gear Diary]
