The Carson LensMag is a pair of magnifiers for your iPhone 5 that provides you an easy way to use your camera as a magnifier.
The lens attaches to your iPhone 5 via a small magnet without the need for glues or adhesives. You will need to remove your case from the phone though, as it does attach directly to the back of the phone. From there, simply open your favorite camera app and you can take great close up photos of anything you want.
The Carson LensMag is available from a variety of retailers for a retail price of $14.95.