Add Yahoo as a preferred source to see more of our stories on Google. We've all seen the magic of long exposure photography – those dreamy, slow-shutter shots where waterfalls turn into silk, clouds ...

The iPhone can't take long exposure photos out of the box. Apple hasn't added the functionality to the default Camera app. But third-party applications will let you increase exposure and capture time.

Every good photo begins with the right exposure. Even if you catch a great subject at the perfect moment with strong framing, everything is lost if you blow the exposure. If you only shoot in ...