The iOS7 version is also added to the HDR feature for the iphone's photo shoot. HDR-Highdynamic Range (High dynamic illumination rendering) is one of the rendering methods in computer graphics, which can make stereoscopic scenes more realistic and greatly increase the virtual reality of three-dimensional.
When this feature is turned on, the iphone will actually shoot three photos, corresponding to the exposure, normal exposure and overexposure, and then become a photo, to enhance the dark and bright details of the performance. The default state of the feature is turned off.
When you need to turn on, simply click on the original "HDR closed", which will switch to "HDR open" status.
So, should we always open this HDR feature? or when should HDR be closed and when should it be turned on? It's very simple, because the function of HDR is to improve the detail of the dark and light parts, so it's ideal for shooting landscapes and outdoor portraits. When shooting moving objects and high-contrast photos, it is best to turn off HDR. For example, when shooting a running object, because of the HDR mode iphone will burst three photos and synthesis, although the shooting speed is very fast, but if the subject is moving, the composite photo will be prone to ghosting.