What does HDR mean and why would I want to use HDR photography on my iPhone? HDR stands for High Dynamic Range, and an HDR photo is created by balancing the shadows and highlights of an image so that neither is being favored or ignored. Basically, HDR on the iPhone is done by combining three different exposures into a single shot. HDR has been around for a long time on the iPhone, so you won't need an HDR camera or a special app if you have an older iPhone 4, iPhone 5, the iPhone 6, the latest iPhone 8, an iPhone X, or any of the models in between. We’ll go over what HDR means, why and when to use HDR photography, as well as how to use HDR on your iPhone. HDR mode on your iPhone camera makes a big difference in the right situations, such as when taking a photo of land and sky. So let’s get to it; here’s everything you need to know about what HDR is and how to use it on your iPhone to take awesome pictures.