Sony Mobile recently unveiled their next series of the Xperia Z line, Xperia Z5, Xperia Z5 Premium and Xperia Z5 Compact. So all these smartphones are packed with a 23MP Exmor Rs sensor which Sony claims it has the worlds fastest Auto-focus speed which will focus in 0.03 seconds. This looks like Xperia Z5's camera is even faster than the human eye. The auto focusing speed, that is, as the Hybrid AF technology in use lets the cam lock the focus faster than the blink of a human eye.
So firstly a background which is three to four meters away from the device is focused and instantly pans the device to a object which is about 6 inches away and gets a photo. So in the first time it fails as the focus circle was not in the object. But in the second and the third times it was amazing as the images taken was very clear. We can assume What Sony claims is true. Xperia Z5 camera has the worlds fastest Auto-focus speed. See it Your Self.