From Predicting the Perfect Photograph to Replacing Paperwork, These Clever Apps Turn Your Smartphone Into a Serious Photographic Toolkit There are photography apps that edit photographs, photography apps that take photographs and photography apps that tell us when the sun is going to set. We know those. But buried deeper in the App Store is another, considerably more interesting category: applications designed to solve the oddly specific problems photographers encounter before, during and after making a photograph. These are the apps that can tell you whether a particular lens will give you the composition you want before you even take the camera out of its bag. They can work out…