In our previous review of the Huawei P30 Pro (click here to view), we mentioned that the Huawei P30 Pro uses a ToF depth-of-field lens to capture depth information on the screen, using the accurate depth information captured by the ToF depth-of-field lens to assist the main lens in focusing and bokeh functions.
P30 Pro lens features at a glance
TOF is also known as time of filght, as the name implies, it is a sensor that calculates the depth of field of an object by measuring the time difference between the reflection of infrared light. Then many people have to ask, why Huawei ToF lens in the rear area, the inclusion of ToF, what role can play?
To understand its role, we have to start with the depth-of-field lens commonly used in the market today. We all know that the human eye can perceive the difference between the distance of an object, but if we block one eye, we lose the sense of distance of the object. The principle of distance perception of objects by the human eye is very simple: the two eyes are positioned differently, there will be a slight parallax when observing the same object. The brain will solve the distance of the object based on the difference in parallax.
DxO Test Huawei P30 Pro Focusing Response Scatter Plot
In this DxO test, Huawei was able to get a score of 100 on the focus item precisely because of the ToF depth lens. It can be said that the ToF lens on the phone has finally found its best use – focusing + depth of field detection. It is foreseeable that the future ToF mounted on the rear camera will become a trend.
And Huawei, as the forerunner of this cell phone ToF technology, has been in the forefront, leaving all competitors behind.