Long exposure photography has the ability to create some amazing shots of motion, but it generally requires expensive equipment and the technical knowledge of how to manually set up the shot. Well, if you have an iPhone, an app called Spectre takes both the expense and the complications out of capturing long exposure shots. It uses artificial intelligence for the exposure to take the guesswork out of how long the shutter should stay open and it even helps you keep the shot stabilized. If you love those soft water exposure shots of running rivers or waterfalls and would like to be able to turn a night shot of a freeway into a river of light, this app is worth the three bucks. It's also a great way to make people in a crowded area disappear into the background as anything with motion automatically gets blurred. Spectre is a really easy app to use, so you'll be capturing those professional looking long exposure shots in just minutes!