Apps like Instagram and Hipstamatic have trained us all to find photos with various filters applied attractive and cool. Apple realized this, obviously, when it updated its own built-in Camera app for iOS 7. These are only available on the iPhone 5 and up, though, so don’t worry if your iPhone 4S doesn’t show any filters here.
While filtering your photo is pretty darn easy, it might not be super intuitive for everyone. Plus, removing the filter is straight up non-intuitive. Launch your camera app and take a photo to walk through the steps involved.