HDR stands for High Dynamic Range. This is very popular nowadays when photographing landscapes. When shooting HDR your going to need to shoot with a tripod and set you camera at different exposures in order to get the perfect exposed picture. This makes a huge difference than shooting normally because when you shoot a normal picture you either get too exposed or under exposed and an okay exposed picture. With HDR you don’t have to struggle as much trying to find the perfect exposure for the picture.