In addition to general photography, it can do an amazing job on close-up (macro) photos.
Just hold the iPhone about 4 inches from your subject, and you will be surprised at the detail you can capture.
However, while you are trying to get your subject into focus, you may be frustrated because every time you move a bit to recompose the shot, (even ever so slightly), the iPhone camera adjusts and refocuses. Argh!
There is a way to “lock” the focus in place and solve this problem, but the feature is a little hard to find.
Here is how to lock your macro focus on your iPhone:
Move your iPhone to within about 4 inches from your subject.
Put your finger on the screen on top of the subject of your photo.
You will see a square appear under your finger. Hold your finger in place against the screen and the square will start pulsating. Take your finger off the screen.
As you lift your finger, you will see the words “AE/AF Lock” appear at the bottom of the screen. This means that the focus is now locked and you can make your small adjustments to the photographic composition without the camera shifting out of focus, again.
The lock is ‘released’ after you take a shot, so if you are going to take more photos, you will have to put your finger on the screen each time to enable the lock.