What do you mean and what's the use of HDR in iPhone 6?

The full name is high dynamic range, which means "high dynamic range". This technique is often used in photography. When we take photos with iPhone, if this function is turned on, we will take three photos in succession, corresponding to underexposure, normal exposure and overexposure respectively, and then synthesize a photo based on these three photos, thus improving the details of the dark and bright parts. "tips for using the HDR function of iphone 6"

1. Be sure to open it when shooting portraits outdoors. Especially in the backlight environment, it is easy to appear a black mass, and in the sunlight environment, there will be overexposure. As shown in the figure below, we first focus on the human face, and then turn on the HDR function, so that the exposure effect of photo shooting will be in a better state. Make the sky bluer and the grass greener when shooting the scenery. However, there is also a big drawback. When shooting sunrise or sunset, HDR function will misjudge the exposure brightness of the sun, which is easy to be distorted.

3. HDR is the best choice if post-processing is needed. The photos taken by HDR will help us to save more details in the original image, so it will also show better results in post-processing. Please turn it off when shooting moving objects. If you use iPhone6 HDR mode to shoot moving objects, the composite photos will appear ghosting phenomenon.

5. If you don't want the system to automatically save the original image and HDR image, you can turn it off through the path of "Settings"-"Photos and cameras"-"Keep photos exposed normally".