The iPhone's camera lens is on the back of the iPhone near the Sleep/Wake button. The lens looks like a little hole, so make sure your finger doesn't accidentally cover it when you take a picture. After you take a picture, you'll probably want to view it, so this section shows you how to do that, too.
When you capture pictures using the iPhone camera, your iPhone saves them in the JPEG file format. When you capture screen images, your iPhone saves them in the PNG file format.
To take a picture, you need to run the Camera program by doing this:
From the Home screen, tap Camera. The Camera screen appears and displays a dialog asking if you want to tag the photo with your current location, as shown in ...