Carson Optics have created a really neat snap on lens for the iPhone 5.

The ML-515 LensMag™ from Carson Optical are a 2-pack of high powered magnet Magnifiers for the iPhone 5™. Included in each 2-pack is a 10x and 15x magnet Magnifier. Simply remove the case from your iPhone 5 and place the desired high powered magnet Magnifer over the camera. The LensMag™ will now act as a macro lens. No glue or additional pieces needed…the LensMag™ magnetically holds onto your iPhone directly. See detail you never though possible with your iPhone 5 and the LensMag™.

What’s clever about this attachment is that it uses a magnet that’s located inside the iPhone 5. It also looks less cumbersome than the Olloclip 3 in 1, although Olloclip does fisheye and wide angled too.