What is the use of Apple iphone 7 dual cameras?

The dual camera configuration of iPhone is computational photography mode. Computational photography uses the built-in algorithm to analyze the information collected by two cameras to make up for the deficiency of a single camera.

The dual cameras on the iPhone 7 Plus use the same12 megapixel lens, one of which is an F/ 1.8 large aperture camera with optical anti-shake function, and the other is an F/2.8 aperture camera with an equivalent focal length of 28 mm, which is just twice as large as the 56mm of the main camera.

When the light is very sufficient, another camera can be used to realize the function of "optical zoom", and when the light is insufficient, iPhone 7 Plus will give priority to the main camera of F/ 1.8 for digital zoom instead of optical zoom.

IPhone 7 Plus is an upgraded version of Apple 7, which was released on September 8th, 20 16, Beijing time.

The iPhone 7 Plus has a screen size of 5.5 inches and a dual camera with12 megapixels. The blur effect is natural, the brightness is increased by 25%, and the color is better. Speaker upgrade, use up and down stereo speakers. Cancel the 3.5mm headphone jack and introduce a new headset, Apple AirPods.