Master the camera app on iOS ...
Serenity Caldwell, Macworld:
"The simplest way to shoot photos and video with your iPhone is to use Apple’s built-in Camera app."
These past eight years, the iPhone’s camera is the one that’s with me all the time, and which I use all the time. Nowadays, I cannot imagine going anywhere without it.
To make the most out of the iPhone's camera app, read this.